21167357960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{421}}^1\times {\mathrm{2273}}^1$

素因数の和:2791

約数の個数: 128

約数和(自身を含む): 55274572800

約数和(自身を除く): 34107214840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 79, 140, 158, 280, 316, 395, 421, 553, 632, 790, 842, 1106, 1580, 1684, 2105, 2212, 2273, 2765, 2947, 3160, 3368, 4210, 4424, 4546, 5530, 5894, 8420, 9092, 11060, 11365, 11788, 14735, 15911, 16840, 18184, 22120, 22730, 23576, 29470, 31822, 33259, 45460, 58940, 63644, 66518, 79555, 90920, 117880, 127288, 133036, 159110, 166295, 179567, 232813, 266072, 318220, 332590, 359134, 465626, 636440, 665180, 718268, 897835, 931252, 956933, 1164065, 1256969, 1330360, 1436536, 1795670, 1862504, 1913866, 2328130, 2513938, 3591340, 3827732, 4656260, 4784665, 5027876, 6284845, 6698531, 7182680, 7655464, 9312520, 9569330, 10055752, 12569690, 13397062, 19138660, 25139380, 26794124, 33492655, 38277320, 50278760, 53588248, 66985310, 75597707, 133970620, 151195414, 267941240, 302390828, 377988535, 529183949, 604781656, 755977070, 1058367898, 1511954140, 2116735796, 2645919745, 3023908280, 4233471592, 5291839490, 10583678980, 21167357960]

約数ペア:

[(1, 21167357960), (2, 10583678980), (4, 5291839490), (5, 4233471592), (7, 3023908280), (8, 2645919745), (10, 2116735796), (14, 1511954140), (20, 1058367898), (28, 755977070), (35, 604781656), (40, 529183949), (56, 377988535), (70, 302390828), (79, 267941240), (140, 151195414), (158, 133970620), (280, 75597707), (316, 66985310), (395, 53588248), (421, 50278760), (553, 38277320), (632, 33492655), (790, 26794124), (842, 25139380), (1106, 19138660), (1580, 13397062), (1684, 12569690), (2105, 10055752), (2212, 9569330), (2273, 9312520), (2765, 7655464), (2947, 7182680), (3160, 6698531), (3368, 6284845), (4210, 5027876), (4424, 4784665), (4546, 4656260), (5530, 3827732), (5894, 3591340), (8420, 2513938), (9092, 2328130), (11060, 1913866), (11365, 1862504), (11788, 1795670), (14735, 1436536), (15911, 1330360), (16840, 1256969), (18184, 1164065), (22120, 956933), (22730, 931252), (23576, 897835), (29470, 718268), (31822, 665180), (33259, 636440), (45460, 465626), (58940, 359134), (63644, 332590), (66518, 318220), (79555, 266072), (90920, 232813), (117880, 179567), (127288, 166295), (133036, 159110)]