21895770

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2441}}^1$

素因数の和:2487

約数の個数: 64

約数和(自身を含む): 59076864

約数和(自身を除く): 37181094

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 23, 26, 30, 39, 46, 65, 69, 78, 115, 130, 138, 195, 230, 299, 345, 390, 598, 690, 897, 1495, 1794, 2441, 2990, 4485, 4882, 7323, 8970, 12205, 14646, 24410, 31733, 36615, 56143, 63466, 73230, 95199, 112286, 158665, 168429, 190398, 280715, 317330, 336858, 475995, 561430, 729859, 842145, 951990, 1459718, 1684290, 2189577, 3649295, 4379154, 7298590, 10947885, 21895770]

約数ペア:

[(1, 21895770), (2, 10947885), (3, 7298590), (5, 4379154), (6, 3649295), (10, 2189577), (13, 1684290), (15, 1459718), (23, 951990), (26, 842145), (30, 729859), (39, 561430), (46, 475995), (65, 336858), (69, 317330), (78, 280715), (115, 190398), (130, 168429), (138, 158665), (195, 112286), (230, 95199), (299, 73230), (345, 63466), (390, 56143), (598, 36615), (690, 31733), (897, 24410), (1495, 14646), (1794, 12205), (2441, 8970), (2990, 7323), (4485, 4882)]