15856407

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{353}}^1$

素因数の和:420

約数の個数: 48

約数和(自身を含む): 28274688

約数和(自身を除く): 12418281

約数列:

[1, 3, 7, 9, 21, 23, 31, 63, 69, 93, 161, 207, 217, 279, 353, 483, 651, 713, 1059, 1449, 1953, 2139, 2471, 3177, 4991, 6417, 7413, 8119, 10943, 14973, 22239, 24357, 32829, 44919, 56833, 73071, 76601, 98487, 170499, 229803, 251689, 511497, 689409, 755067, 1761823, 2265201, 5285469, 15856407]

約数ペア:

[(1, 15856407), (3, 5285469), (7, 2265201), (9, 1761823), (21, 755067), (23, 689409), (31, 511497), (63, 251689), (69, 229803), (93, 170499), (161, 98487), (207, 76601), (217, 73071), (279, 56833), (353, 44919), (483, 32829), (651, 24357), (713, 22239), (1059, 14973), (1449, 10943), (1953, 8119), (2139, 7413), (2471, 6417), (3177, 4991)]