21597186

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^2\times {\mathrm{19}}^2\times {\mathrm{59}}^1$

素因数の和:128

約数の個数: 72

約数和(自身を含む): 50200560

約数和(自身を除く): 28603374

約数列:

[1, 2, 3, 6, 13, 19, 26, 38, 39, 57, 59, 78, 114, 118, 169, 177, 247, 338, 354, 361, 494, 507, 722, 741, 767, 1014, 1083, 1121, 1482, 1534, 2166, 2242, 2301, 3211, 3363, 4602, 4693, 6422, 6726, 9386, 9633, 9971, 14079, 14573, 19266, 19942, 21299, 28158, 29146, 29913, 42598, 43719, 59826, 61009, 63897, 87438, 122018, 127794, 183027, 189449, 276887, 366054, 378898, 553774, 568347, 830661, 1136694, 1661322, 3599531, 7199062, 10798593, 21597186]

約数ペア:

[(1, 21597186), (2, 10798593), (3, 7199062), (6, 3599531), (13, 1661322), (19, 1136694), (26, 830661), (38, 568347), (39, 553774), (57, 378898), (59, 366054), (78, 276887), (114, 189449), (118, 183027), (169, 127794), (177, 122018), (247, 87438), (338, 63897), (354, 61009), (361, 59826), (494, 43719), (507, 42598), (722, 29913), (741, 29146), (767, 28158), (1014, 21299), (1083, 19942), (1121, 19266), (1482, 14573), (1534, 14079), (2166, 9971), (2242, 9633), (2301, 9386), (3211, 6726), (3363, 6422), (4602, 4693)]