21774350

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{241}}^1$

素因数の和:405

約数の個数: 48

約数和(自身を含む): 44111760

約数和(自身を除く): 22337410

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 139, 241, 278, 325, 482, 650, 695, 1205, 1390, 1807, 2410, 3133, 3475, 3614, 6025, 6266, 6950, 9035, 12050, 15665, 18070, 31330, 33499, 45175, 66998, 78325, 90350, 156650, 167495, 334990, 435487, 837475, 870974, 1674950, 2177435, 4354870, 10887175, 21774350]

約数ペア:

[(1, 21774350), (2, 10887175), (5, 4354870), (10, 2177435), (13, 1674950), (25, 870974), (26, 837475), (50, 435487), (65, 334990), (130, 167495), (139, 156650), (241, 90350), (278, 78325), (325, 66998), (482, 45175), (650, 33499), (695, 31330), (1205, 18070), (1390, 15665), (1807, 12050), (2410, 9035), (3133, 6950), (3475, 6266), (3614, 6025)]