21873930

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{56087}}^1$

素因数の和:56110

約数の個数: 32

約数和(自身を含む): 56536704

約数和(自身を除く): 34662774

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 56087, 112174, 168261, 280435, 336522, 560870, 729131, 841305, 1458262, 1682610, 2187393, 3645655, 4374786, 7291310, 10936965, 21873930]

約数ペア:

[(1, 21873930), (2, 10936965), (3, 7291310), (5, 4374786), (6, 3645655), (10, 2187393), (13, 1682610), (15, 1458262), (26, 841305), (30, 729131), (39, 560870), (65, 336522), (78, 280435), (130, 168261), (195, 112174), (390, 56087)]