21581742

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^2\times {\mathrm{47}}^1$

素因数の和:130

約数の個数: 96

約数和(自身を含む): 56189952

約数和(自身を除く): 34608210

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 29, 39, 42, 47, 58, 78, 87, 91, 94, 141, 174, 182, 203, 273, 282, 329, 377, 406, 546, 609, 611, 658, 754, 841, 987, 1131, 1218, 1222, 1363, 1682, 1833, 1974, 2262, 2523, 2639, 2726, 3666, 4089, 4277, 5046, 5278, 5887, 7917, 8178, 8554, 9541, 10933, 11774, 12831, 15834, 17661, 17719, 19082, 21866, 25662, 28623, 32799, 35322, 35438, 39527, 53157, 57246, 65598, 76531, 79054, 106314, 118581, 124033, 153062, 229593, 237162, 248066, 276689, 372099, 459186, 513851, 553378, 744198, 830067, 1027702, 1541553, 1660134, 3083106, 3596957, 7193914, 10790871, 21581742]

約数ペア:

[(1, 21581742), (2, 10790871), (3, 7193914), (6, 3596957), (7, 3083106), (13, 1660134), (14, 1541553), (21, 1027702), (26, 830067), (29, 744198), (39, 553378), (42, 513851), (47, 459186), (58, 372099), (78, 276689), (87, 248066), (91, 237162), (94, 229593), (141, 153062), (174, 124033), (182, 118581), (203, 106314), (273, 79054), (282, 76531), (329, 65598), (377, 57246), (406, 53157), (546, 39527), (609, 35438), (611, 35322), (658, 32799), (754, 28623), (841, 25662), (987, 21866), (1131, 19082), (1218, 17719), (1222, 17661), (1363, 15834), (1682, 12831), (1833, 11774), (1974, 10933), (2262, 9541), (2523, 8554), (2639, 8178), (2726, 7917), (3666, 5887), (4089, 5278), (4277, 5046)]