21751764

素因数分解:

$2^2\times 3^1\times {\mathrm{101}}^1\times {\mathrm{131}}^1\times {\mathrm{137}}^1$

素因数の和:376

約数の個数: 48

約数和(自身を含む): 52024896

約数和(自身を除く): 30273132

約数列:

[1, 2, 3, 4, 6, 12, 101, 131, 137, 202, 262, 274, 303, 393, 404, 411, 524, 548, 606, 786, 822, 1212, 1572, 1644, 13231, 13837, 17947, 26462, 27674, 35894, 39693, 41511, 52924, 53841, 55348, 71788, 79386, 83022, 107682, 158772, 166044, 215364, 1812647, 3625294, 5437941, 7250588, 10875882, 21751764]

約数ペア:

[(1, 21751764), (2, 10875882), (3, 7250588), (4, 5437941), (6, 3625294), (12, 1812647), (101, 215364), (131, 166044), (137, 158772), (202, 107682), (262, 83022), (274, 79386), (303, 71788), (393, 55348), (404, 53841), (411, 52924), (524, 41511), (548, 39693), (606, 35894), (786, 27674), (822, 26462), (1212, 17947), (1572, 13837), (1644, 13231)]