21247524

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{241}}^1$

素因数の和:361

約数の個数: 72

約数和(自身を含む): 56376320

約数和(自身を除く): 35128796

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 79, 93, 124, 158, 186, 237, 241, 279, 316, 372, 474, 482, 558, 711, 723, 948, 964, 1116, 1422, 1446, 2169, 2449, 2844, 2892, 4338, 4898, 7347, 7471, 8676, 9796, 14694, 14942, 19039, 22041, 22413, 29388, 29884, 38078, 44082, 44826, 57117, 67239, 76156, 88164, 89652, 114234, 134478, 171351, 228468, 268956, 342702, 590209, 685404, 1180418, 1770627, 2360836, 3541254, 5311881, 7082508, 10623762, 21247524]

約数ペア:

[(1, 21247524), (2, 10623762), (3, 7082508), (4, 5311881), (6, 3541254), (9, 2360836), (12, 1770627), (18, 1180418), (31, 685404), (36, 590209), (62, 342702), (79, 268956), (93, 228468), (124, 171351), (158, 134478), (186, 114234), (237, 89652), (241, 88164), (279, 76156), (316, 67239), (372, 57117), (474, 44826), (482, 44082), (558, 38078), (711, 29884), (723, 29388), (948, 22413), (964, 22041), (1116, 19039), (1422, 14942), (1446, 14694), (2169, 9796), (2449, 8676), (2844, 7471), (2892, 7347), (4338, 4898)]