21974810

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^3\times {\mathrm{13}}^1\times {\mathrm{127}}^1$

素因数の和:180

約数の個数: 64

約数和(自身を含む): 47222784

約数和(自身を除く): 25247974

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 121, 127, 130, 143, 242, 254, 286, 605, 635, 715, 1210, 1270, 1331, 1397, 1430, 1573, 1651, 2662, 2794, 3146, 3302, 6655, 6985, 7865, 8255, 13310, 13970, 15367, 15730, 16510, 17303, 18161, 30734, 34606, 36322, 76835, 86515, 90805, 153670, 169037, 173030, 181610, 199771, 338074, 399542, 845185, 998855, 1690370, 1997710, 2197481, 4394962, 10987405, 21974810]

約数ペア:

[(1, 21974810), (2, 10987405), (5, 4394962), (10, 2197481), (11, 1997710), (13, 1690370), (22, 998855), (26, 845185), (55, 399542), (65, 338074), (110, 199771), (121, 181610), (127, 173030), (130, 169037), (143, 153670), (242, 90805), (254, 86515), (286, 76835), (605, 36322), (635, 34606), (715, 30734), (1210, 18161), (1270, 17303), (1331, 16510), (1397, 15730), (1430, 15367), (1573, 13970), (1651, 13310), (2662, 8255), (2794, 7865), (3146, 6985), (3302, 6655)]