21891537364

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{1997}}^1\times {\mathrm{4357}}^1$

素因数の和:6412

約数の個数: 48

約数和(自身を含む): 41690475792

約数和(自身を除く): 19798938428

約数列:

[1, 2, 4, 17, 34, 37, 68, 74, 148, 629, 1258, 1997, 2516, 3994, 4357, 7988, 8714, 17428, 33949, 67898, 73889, 74069, 135796, 147778, 148138, 161209, 295556, 296276, 322418, 644836, 1256113, 2512226, 2740553, 5024452, 5481106, 8700929, 10962212, 17401858, 34803716, 147915793, 295831586, 321934373, 591663172, 643868746, 1287737492, 5472884341, 10945768682, 21891537364]

約数ペア:

[(1, 21891537364), (2, 10945768682), (4, 5472884341), (17, 1287737492), (34, 643868746), (37, 591663172), (68, 321934373), (74, 295831586), (148, 147915793), (629, 34803716), (1258, 17401858), (1997, 10962212), (2516, 8700929), (3994, 5481106), (4357, 5024452), (7988, 2740553), (8714, 2512226), (17428, 1256113), (33949, 644836), (67898, 322418), (73889, 296276), (74069, 295556), (135796, 161209), (147778, 148138)]