21496125

素因数分解:

$3^1\times 5^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{431}}^1$

素因数の和:475

約数の個数: 64

約数和(自身を含む): 43130880

約数和(自身を除く): 21634755

約数列:

[1, 3, 5, 7, 15, 19, 21, 25, 35, 57, 75, 95, 105, 125, 133, 175, 285, 375, 399, 431, 475, 525, 665, 875, 1293, 1425, 1995, 2155, 2375, 2625, 3017, 3325, 6465, 7125, 8189, 9051, 9975, 10775, 15085, 16625, 24567, 32325, 40945, 45255, 49875, 53875, 57323, 75425, 122835, 161625, 171969, 204725, 226275, 286615, 377125, 614175, 859845, 1023625, 1131375, 1433075, 3070875, 4299225, 7165375, 21496125]

約数ペア:

[(1, 21496125), (3, 7165375), (5, 4299225), (7, 3070875), (15, 1433075), (19, 1131375), (21, 1023625), (25, 859845), (35, 614175), (57, 377125), (75, 286615), (95, 226275), (105, 204725), (125, 171969), (133, 161625), (175, 122835), (285, 75425), (375, 57323), (399, 53875), (431, 49875), (475, 45255), (525, 40945), (665, 32325), (875, 24567), (1293, 16625), (1425, 15085), (1995, 10775), (2155, 9975), (2375, 9051), (2625, 8189), (3017, 7125), (3325, 6465)]