21621111913

素因数分解:

${\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{263}}^1\times {\mathrm{911}}^1$

素因数の和:1317

約数の個数: 32

約数和(自身を含む): 23298637824

約数和(自身を除く): 1677525911

約数列:

[1, 31, 41, 71, 263, 911, 1271, 2201, 2911, 8153, 10783, 18673, 28241, 37351, 64681, 90241, 239593, 334273, 578863, 765593, 1157881, 2005111, 2651921, 7427383, 9823313, 17011103, 23733383, 82209551, 304522703, 527344193, 697455223, 21621111913]

約数ペア:

[(1, 21621111913), (31, 697455223), (41, 527344193), (71, 304522703), (263, 82209551), (911, 23733383), (1271, 17011103), (2201, 9823313), (2911, 7427383), (8153, 2651921), (10783, 2005111), (18673, 1157881), (28241, 765593), (37351, 578863), (64681, 334273), (90241, 239593)]