21848944

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{167}}^1$

素因数の和:242

約数の個数: 80

約数和(自身を含む): 49871808

約数和(自身を除く): 28022864

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 37, 52, 68, 74, 104, 136, 148, 167, 208, 221, 272, 296, 334, 442, 481, 592, 629, 668, 884, 962, 1258, 1336, 1768, 1924, 2171, 2516, 2672, 2839, 3536, 3848, 4342, 5032, 5678, 6179, 7696, 8177, 8684, 10064, 11356, 12358, 16354, 17368, 22712, 24716, 32708, 34736, 36907, 45424, 49432, 65416, 73814, 80327, 98864, 105043, 130832, 147628, 160654, 210086, 295256, 321308, 420172, 590512, 642616, 840344, 1285232, 1365559, 1680688, 2731118, 5462236, 10924472, 21848944]

約数ペア:

[(1, 21848944), (2, 10924472), (4, 5462236), (8, 2731118), (13, 1680688), (16, 1365559), (17, 1285232), (26, 840344), (34, 642616), (37, 590512), (52, 420172), (68, 321308), (74, 295256), (104, 210086), (136, 160654), (148, 147628), (167, 130832), (208, 105043), (221, 98864), (272, 80327), (296, 73814), (334, 65416), (442, 49432), (481, 45424), (592, 36907), (629, 34736), (668, 32708), (884, 24716), (962, 22712), (1258, 17368), (1336, 16354), (1768, 12358), (1924, 11356), (2171, 10064), (2516, 8684), (2672, 8177), (2839, 7696), (3536, 6179), (3848, 5678), (4342, 5032)]