21432285

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3581}}^1$

素因数の和:3618

約数の個数: 48

約数和(自身を含む): 44703360

約数和(自身を除く): 23271075

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 35, 45, 57, 63, 95, 105, 133, 171, 285, 315, 399, 665, 855, 1197, 1995, 3581, 5985, 10743, 17905, 25067, 32229, 53715, 68039, 75201, 125335, 161145, 204117, 225603, 340195, 376005, 476273, 612351, 1020585, 1128015, 1428819, 2381365, 3061755, 4286457, 7144095, 21432285]

約数ペア:

[(1, 21432285), (3, 7144095), (5, 4286457), (7, 3061755), (9, 2381365), (15, 1428819), (19, 1128015), (21, 1020585), (35, 612351), (45, 476273), (57, 376005), (63, 340195), (95, 225603), (105, 204117), (133, 161145), (171, 125335), (285, 75201), (315, 68039), (399, 53715), (665, 32229), (855, 25067), (1197, 17905), (1995, 10743), (3581, 5985)]