21904428

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{1543}}^1$

素因数の和:1583

約数の個数: 72

約数和(自身を含む): 63291648

約数和(自身を除く): 41387220

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 52, 78, 84, 91, 156, 169, 182, 273, 338, 364, 507, 546, 676, 1014, 1092, 1183, 1543, 2028, 2366, 3086, 3549, 4629, 4732, 6172, 7098, 9258, 10801, 14196, 18516, 20059, 21602, 32403, 40118, 43204, 60177, 64806, 80236, 120354, 129612, 140413, 240708, 260767, 280826, 421239, 521534, 561652, 782301, 842478, 1043068, 1564602, 1684956, 1825369, 3129204, 3650738, 5476107, 7301476, 10952214, 21904428]

約数ペア:

[(1, 21904428), (2, 10952214), (3, 7301476), (4, 5476107), (6, 3650738), (7, 3129204), (12, 1825369), (13, 1684956), (14, 1564602), (21, 1043068), (26, 842478), (28, 782301), (39, 561652), (42, 521534), (52, 421239), (78, 280826), (84, 260767), (91, 240708), (156, 140413), (169, 129612), (182, 120354), (273, 80236), (338, 64806), (364, 60177), (507, 43204), (546, 40118), (676, 32403), (1014, 21602), (1092, 20059), (1183, 18516), (1543, 14196), (2028, 10801), (2366, 9258), (3086, 7098), (3549, 6172), (4629, 4732)]