21410025

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{3137}}^1$

素因数の和:3170

約数の個数: 48

約数和(自身を含む): 43580544

約数和(自身を除く): 22170519

約数列:

[1, 3, 5, 7, 13, 15, 21, 25, 35, 39, 65, 75, 91, 105, 175, 195, 273, 325, 455, 525, 975, 1365, 2275, 3137, 6825, 9411, 15685, 21959, 40781, 47055, 65877, 78425, 109795, 122343, 203905, 235275, 285467, 329385, 548975, 611715, 856401, 1019525, 1427335, 1646925, 3058575, 4282005, 7136675, 21410025]

約数ペア:

[(1, 21410025), (3, 7136675), (5, 4282005), (7, 3058575), (13, 1646925), (15, 1427335), (21, 1019525), (25, 856401), (35, 611715), (39, 548975), (65, 329385), (75, 285467), (91, 235275), (105, 203905), (175, 122343), (195, 109795), (273, 78425), (325, 65877), (455, 47055), (525, 40781), (975, 21959), (1365, 15685), (2275, 9411), (3137, 6825)]