20937852

素因数分解:

$2^2\times 3^5\times {\mathrm{13}}^1\times {\mathrm{1657}}^1$

素因数の和:1689

約数の個数: 72

約数和(自身を含む): 59144176

約数和(自身を除く): 38206324

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 81, 108, 117, 156, 162, 234, 243, 324, 351, 468, 486, 702, 972, 1053, 1404, 1657, 2106, 3159, 3314, 4212, 4971, 6318, 6628, 9942, 12636, 14913, 19884, 21541, 29826, 43082, 44739, 59652, 64623, 86164, 89478, 129246, 134217, 178956, 193869, 258492, 268434, 387738, 402651, 536868, 581607, 775476, 805302, 1163214, 1610604, 1744821, 2326428, 3489642, 5234463, 6979284, 10468926, 20937852]

約数ペア:

[(1, 20937852), (2, 10468926), (3, 6979284), (4, 5234463), (6, 3489642), (9, 2326428), (12, 1744821), (13, 1610604), (18, 1163214), (26, 805302), (27, 775476), (36, 581607), (39, 536868), (52, 402651), (54, 387738), (78, 268434), (81, 258492), (108, 193869), (117, 178956), (156, 134217), (162, 129246), (234, 89478), (243, 86164), (324, 64623), (351, 59652), (468, 44739), (486, 43082), (702, 29826), (972, 21541), (1053, 19884), (1404, 14913), (1657, 12636), (2106, 9942), (3159, 6628), (3314, 6318), (4212, 4971)]