20726748

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{233}}^1\times {\mathrm{353}}^1$

素因数の和:603

約数の個数: 72

約数和(自身を含む): 60304608

約数和(自身を除く): 39577860

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 233, 252, 353, 466, 699, 706, 932, 1059, 1398, 1412, 1631, 2097, 2118, 2471, 2796, 3177, 3262, 4194, 4236, 4893, 4942, 6354, 6524, 7413, 8388, 9786, 9884, 12708, 14679, 14826, 19572, 22239, 29358, 29652, 44478, 58716, 82249, 88956, 164498, 246747, 328996, 493494, 575743, 740241, 986988, 1151486, 1480482, 1727229, 2302972, 2960964, 3454458, 5181687, 6908916, 10363374, 20726748]

約数ペア:

[(1, 20726748), (2, 10363374), (3, 6908916), (4, 5181687), (6, 3454458), (7, 2960964), (9, 2302972), (12, 1727229), (14, 1480482), (18, 1151486), (21, 986988), (28, 740241), (36, 575743), (42, 493494), (63, 328996), (84, 246747), (126, 164498), (233, 88956), (252, 82249), (353, 58716), (466, 44478), (699, 29652), (706, 29358), (932, 22239), (1059, 19572), (1398, 14826), (1412, 14679), (1631, 12708), (2097, 9884), (2118, 9786), (2471, 8388), (2796, 7413), (3177, 6524), (3262, 6354), (4194, 4942), (4236, 4893)]