20459764

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{509}}^1\times {\mathrm{773}}^1$

素因数の和:1299

約数の個数: 24

約数和(自身を含む): 38684520

約数和(自身を除く): 18224756

約数列:

[1, 2, 4, 13, 26, 52, 509, 773, 1018, 1546, 2036, 3092, 6617, 10049, 13234, 20098, 26468, 40196, 393457, 786914, 1573828, 5114941, 10229882, 20459764]

約数ペア:

[(1, 20459764), (2, 10229882), (4, 5114941), (13, 1573828), (26, 786914), (52, 393457), (509, 40196), (773, 26468), (1018, 20098), (1546, 13234), (2036, 10049), (3092, 6617)]