21000478536

素因数分解:

$2^3\times 3^2\times {\mathrm{19}}^1\times {\mathrm{1399}}^1\times {\mathrm{10973}}^1$

素因数の和:12403

約数の個数: 96

約数和(自身を含む): 59918040000

約数和(自身を除く): 38917561464

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 36, 38, 57, 72, 76, 114, 152, 171, 228, 342, 456, 684, 1368, 1399, 2798, 4197, 5596, 8394, 10973, 11192, 12591, 16788, 21946, 25182, 26581, 32919, 33576, 43892, 50364, 53162, 65838, 79743, 87784, 98757, 100728, 106324, 131676, 159486, 197514, 208487, 212648, 239229, 263352, 318972, 395028, 416974, 478458, 625461, 637944, 790056, 833948, 956916, 1250922, 1667896, 1876383, 1913832, 2501844, 3752766, 5003688, 7505532, 15011064, 15351227, 30702454, 46053681, 61404908, 92107362, 122809816, 138161043, 184214724, 276322086, 291673313, 368429448, 552644172, 583346626, 875019939, 1105288344, 1166693252, 1750039878, 2333386504, 2625059817, 3500079756, 5250119634, 7000159512, 10500239268, 21000478536]

約数ペア:

[(1, 21000478536), (2, 10500239268), (3, 7000159512), (4, 5250119634), (6, 3500079756), (8, 2625059817), (9, 2333386504), (12, 1750039878), (18, 1166693252), (19, 1105288344), (24, 875019939), (36, 583346626), (38, 552644172), (57, 368429448), (72, 291673313), (76, 276322086), (114, 184214724), (152, 138161043), (171, 122809816), (228, 92107362), (342, 61404908), (456, 46053681), (684, 30702454), (1368, 15351227), (1399, 15011064), (2798, 7505532), (4197, 5003688), (5596, 3752766), (8394, 2501844), (10973, 1913832), (11192, 1876383), (12591, 1667896), (16788, 1250922), (21946, 956916), (25182, 833948), (26581, 790056), (32919, 637944), (33576, 625461), (43892, 478458), (50364, 416974), (53162, 395028), (65838, 318972), (79743, 263352), (87784, 239229), (98757, 212648), (100728, 208487), (106324, 197514), (131676, 159486)]