20481604

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{587}}^1$

素因数の和:676

約数の個数: 48

約数和(自身を含む): 42872256

約数和(自身を除く): 22390652

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 61, 122, 143, 244, 286, 572, 587, 671, 793, 1174, 1342, 1586, 2348, 2684, 3172, 6457, 7631, 8723, 12914, 15262, 17446, 25828, 30524, 34892, 35807, 71614, 83941, 143228, 167882, 335764, 393877, 465491, 787754, 930982, 1575508, 1861964, 5120401, 10240802, 20481604]

約数ペア:

[(1, 20481604), (2, 10240802), (4, 5120401), (11, 1861964), (13, 1575508), (22, 930982), (26, 787754), (44, 465491), (52, 393877), (61, 335764), (122, 167882), (143, 143228), (244, 83941), (286, 71614), (572, 35807), (587, 34892), (671, 30524), (793, 25828), (1174, 17446), (1342, 15262), (1586, 12914), (2348, 8723), (2684, 7631), (3172, 6457)]