21429540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1$

素因数の和:242

約数の個数: 144

約数和(自身を含む): 72334080

約数和(自身を除く): 50904540

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 79, 90, 99, 110, 132, 137, 158, 165, 180, 198, 220, 237, 274, 316, 330, 395, 396, 411, 474, 495, 548, 660, 685, 711, 790, 822, 869, 948, 990, 1185, 1233, 1370, 1422, 1507, 1580, 1644, 1738, 1980, 2055, 2370, 2466, 2607, 2740, 2844, 3014, 3476, 3555, 4110, 4345, 4521, 4740, 4932, 5214, 6028, 6165, 7110, 7535, 7821, 8220, 8690, 9042, 10428, 10823, 12330, 13035, 13563, 14220, 15070, 15642, 17380, 18084, 21646, 22605, 24660, 26070, 27126, 30140, 31284, 32469, 39105, 43292, 45210, 52140, 54115, 54252, 64938, 67815, 78210, 90420, 97407, 108230, 119053, 129876, 135630, 156420, 162345, 194814, 216460, 238106, 271260, 324690, 357159, 389628, 476212, 487035, 595265, 649380, 714318, 974070, 1071477, 1190530, 1428636, 1785795, 1948140, 2142954, 2381060, 3571590, 4285908, 5357385, 7143180, 10714770, 21429540]

約数ペア:

[(1, 21429540), (2, 10714770), (3, 7143180), (4, 5357385), (5, 4285908), (6, 3571590), (9, 2381060), (10, 2142954), (11, 1948140), (12, 1785795), (15, 1428636), (18, 1190530), (20, 1071477), (22, 974070), (30, 714318), (33, 649380), (36, 595265), (44, 487035), (45, 476212), (55, 389628), (60, 357159), (66, 324690), (79, 271260), (90, 238106), (99, 216460), (110, 194814), (132, 162345), (137, 156420), (158, 135630), (165, 129876), (180, 119053), (198, 108230), (220, 97407), (237, 90420), (274, 78210), (316, 67815), (330, 64938), (395, 54252), (396, 54115), (411, 52140), (474, 45210), (495, 43292), (548, 39105), (660, 32469), (685, 31284), (711, 30140), (790, 27126), (822, 26070), (869, 24660), (948, 22605), (990, 21646), (1185, 18084), (1233, 17380), (1370, 15642), (1422, 15070), (1507, 14220), (1580, 13563), (1644, 13035), (1738, 12330), (1980, 10823), (2055, 10428), (2370, 9042), (2466, 8690), (2607, 8220), (2740, 7821), (2844, 7535), (3014, 7110), (3476, 6165), (3555, 6028), (4110, 5214), (4345, 4932), (4521, 4740)]