21545251

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{227}}^1$

素因数の和:403

約数の個数: 24

約数和(自身を含む): 27291600

約数和(自身を除く): 5746349

約数列:

[1, 7, 13, 49, 91, 149, 227, 637, 1043, 1589, 1937, 2951, 7301, 11123, 13559, 20657, 33823, 94913, 144599, 236761, 439699, 1657327, 3077893, 21545251]

約数ペア:

[(1, 21545251), (7, 3077893), (13, 1657327), (49, 439699), (91, 236761), (149, 144599), (227, 94913), (637, 33823), (1043, 20657), (1589, 13559), (1937, 11123), (2951, 7301)]