21423456

素因数分解:

$2^5\times 3^2\times {\mathrm{73}}^1\times {\mathrm{1019}}^1$

素因数の和:1108

約数の個数: 72

約数和(自身を含む): 61818120

約数和(自身を除く): 40394664

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 73, 96, 144, 146, 219, 288, 292, 438, 584, 657, 876, 1019, 1168, 1314, 1752, 2038, 2336, 2628, 3057, 3504, 4076, 5256, 6114, 7008, 8152, 9171, 10512, 12228, 16304, 18342, 21024, 24456, 32608, 36684, 48912, 73368, 74387, 97824, 146736, 148774, 223161, 293472, 297548, 446322, 595096, 669483, 892644, 1190192, 1338966, 1785288, 2380384, 2677932, 3570576, 5355864, 7141152, 10711728, 21423456]

約数ペア:

[(1, 21423456), (2, 10711728), (3, 7141152), (4, 5355864), (6, 3570576), (8, 2677932), (9, 2380384), (12, 1785288), (16, 1338966), (18, 1190192), (24, 892644), (32, 669483), (36, 595096), (48, 446322), (72, 297548), (73, 293472), (96, 223161), (144, 148774), (146, 146736), (219, 97824), (288, 74387), (292, 73368), (438, 48912), (584, 36684), (657, 32608), (876, 24456), (1019, 21024), (1168, 18342), (1314, 16304), (1752, 12228), (2038, 10512), (2336, 9171), (2628, 8152), (3057, 7008), (3504, 6114), (4076, 5256)]