21180221036

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{307}}^1\times {\mathrm{25033}}^1$

素因数の和:25410

約数の個数: 48

約数和(自身を含む): 40803817824

約数和(自身を除く): 19623596788

約数列:

[1, 2, 4, 13, 26, 52, 53, 106, 212, 307, 614, 689, 1228, 1378, 2756, 3991, 7982, 15964, 16271, 25033, 32542, 50066, 65084, 100132, 211523, 325429, 423046, 650858, 846092, 1301716, 1326749, 2653498, 5306996, 7685131, 15370262, 17247737, 30740524, 34495474, 68990948, 99906703, 199813406, 399626812, 407311943, 814623886, 1629247772, 5295055259, 10590110518, 21180221036]

約数ペア:

[(1, 21180221036), (2, 10590110518), (4, 5295055259), (13, 1629247772), (26, 814623886), (52, 407311943), (53, 399626812), (106, 199813406), (212, 99906703), (307, 68990948), (614, 34495474), (689, 30740524), (1228, 17247737), (1378, 15370262), (2756, 7685131), (3991, 5306996), (7982, 2653498), (15964, 1326749), (16271, 1301716), (25033, 846092), (32542, 650858), (50066, 423046), (65084, 325429), (100132, 211523)]