21406056

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{2711}}^1$

素因数の和:2774

約数の個数: 64

約数和(自身を含む): 62484480

約数和(自身を除く): 41078424

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 47, 56, 84, 94, 141, 168, 188, 282, 329, 376, 564, 658, 987, 1128, 1316, 1974, 2632, 2711, 3948, 5422, 7896, 8133, 10844, 16266, 18977, 21688, 32532, 37954, 56931, 65064, 75908, 113862, 127417, 151816, 227724, 254834, 382251, 455448, 509668, 764502, 891919, 1019336, 1529004, 1783838, 2675757, 3058008, 3567676, 5351514, 7135352, 10703028, 21406056]

約数ペア:

[(1, 21406056), (2, 10703028), (3, 7135352), (4, 5351514), (6, 3567676), (7, 3058008), (8, 2675757), (12, 1783838), (14, 1529004), (21, 1019336), (24, 891919), (28, 764502), (42, 509668), (47, 455448), (56, 382251), (84, 254834), (94, 227724), (141, 151816), (168, 127417), (188, 113862), (282, 75908), (329, 65064), (376, 56931), (564, 37954), (658, 32532), (987, 21688), (1128, 18977), (1316, 16266), (1974, 10844), (2632, 8133), (2711, 7896), (3948, 5422)]