21253635

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{773}}^1$

素因数の和:844

約数の個数: 48

約数和(自身を含む): 40569984

約数和(自身を除く): 19316349

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 47, 65, 117, 141, 195, 235, 423, 585, 611, 705, 773, 1833, 2115, 2319, 3055, 3865, 5499, 6957, 9165, 10049, 11595, 27495, 30147, 34785, 36331, 50245, 90441, 108993, 150735, 181655, 326979, 452205, 472303, 544965, 1416909, 1634895, 2361515, 4250727, 7084545, 21253635]

約数ペア:

[(1, 21253635), (3, 7084545), (5, 4250727), (9, 2361515), (13, 1634895), (15, 1416909), (39, 544965), (45, 472303), (47, 452205), (65, 326979), (117, 181655), (141, 150735), (195, 108993), (235, 90441), (423, 50245), (585, 36331), (611, 34785), (705, 30147), (773, 27495), (1833, 11595), (2115, 10049), (2319, 9165), (3055, 6957), (3865, 5499)]