21498386

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{6217}}^1$

素因数の和:6258

約数の個数: 32

約数和(自身を含む): 41784960

約数和(自身を除く): 20286574

約数列:

[1, 2, 7, 13, 14, 19, 26, 38, 91, 133, 182, 247, 266, 494, 1729, 3458, 6217, 12434, 43519, 80821, 87038, 118123, 161642, 236246, 565747, 826861, 1131494, 1535599, 1653722, 3071198, 10749193, 21498386]

約数ペア:

[(1, 21498386), (2, 10749193), (7, 3071198), (13, 1653722), (14, 1535599), (19, 1131494), (26, 826861), (38, 565747), (91, 236246), (133, 161642), (182, 118123), (247, 87038), (266, 80821), (494, 43519), (1729, 12434), (3458, 6217)]