21957012

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^2$

素因数の和:206

約数の個数: 108

約数和(自身を含む): 69984096

約数和(自身を除く): 48027084

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 28, 33, 36, 42, 44, 63, 66, 77, 84, 89, 99, 126, 132, 154, 178, 198, 231, 252, 267, 308, 356, 396, 462, 534, 623, 693, 801, 924, 979, 1068, 1246, 1386, 1602, 1869, 1958, 2492, 2772, 2937, 3204, 3738, 3916, 5607, 5874, 6853, 7476, 7921, 8811, 11214, 11748, 13706, 15842, 17622, 20559, 22428, 23763, 27412, 31684, 35244, 41118, 47526, 55447, 61677, 71289, 82236, 87131, 95052, 110894, 123354, 142578, 166341, 174262, 221788, 246708, 261393, 285156, 332682, 348524, 499023, 522786, 609917, 665364, 784179, 998046, 1045572, 1219834, 1568358, 1829751, 1996092, 2439668, 3136716, 3659502, 5489253, 7319004, 10978506, 21957012]

約数ペア:

[(1, 21957012), (2, 10978506), (3, 7319004), (4, 5489253), (6, 3659502), (7, 3136716), (9, 2439668), (11, 1996092), (12, 1829751), (14, 1568358), (18, 1219834), (21, 1045572), (22, 998046), (28, 784179), (33, 665364), (36, 609917), (42, 522786), (44, 499023), (63, 348524), (66, 332682), (77, 285156), (84, 261393), (89, 246708), (99, 221788), (126, 174262), (132, 166341), (154, 142578), (178, 123354), (198, 110894), (231, 95052), (252, 87131), (267, 82236), (308, 71289), (356, 61677), (396, 55447), (462, 47526), (534, 41118), (623, 35244), (693, 31684), (801, 27412), (924, 23763), (979, 22428), (1068, 20559), (1246, 17622), (1386, 15842), (1602, 13706), (1869, 11748), (1958, 11214), (2492, 8811), (2772, 7921), (2937, 7476), (3204, 6853), (3738, 5874), (3916, 5607)]