21560669728

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{263089}}^1$

素因数の和:263309

約数の個数: 48

約数和(自身を含む): 45944985240

約数和(自身を除く): 24384315512

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 197, 208, 394, 416, 788, 1576, 2561, 3152, 5122, 6304, 10244, 20488, 40976, 81952, 263089, 526178, 1052356, 2104712, 3420157, 4209424, 6840314, 8418848, 13680628, 27361256, 51828533, 54722512, 103657066, 109445024, 207314132, 414628264, 673770929, 829256528, 1347541858, 1658513056, 2695083716, 5390167432, 10780334864, 21560669728]

約数ペア:

[(1, 21560669728), (2, 10780334864), (4, 5390167432), (8, 2695083716), (13, 1658513056), (16, 1347541858), (26, 829256528), (32, 673770929), (52, 414628264), (104, 207314132), (197, 109445024), (208, 103657066), (394, 54722512), (416, 51828533), (788, 27361256), (1576, 13680628), (2561, 8418848), (3152, 6840314), (5122, 4209424), (6304, 3420157), (10244, 2104712), (20488, 1052356), (40976, 526178), (81952, 263089)]