21141585

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{313}}^1$

素因数の和:422

約数の個数: 48

約数和(自身を含む): 39187200

約数和(自身を除く): 18045615

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 79, 95, 171, 237, 285, 313, 395, 711, 855, 939, 1185, 1501, 1565, 2817, 3555, 4503, 4695, 5947, 7505, 13509, 14085, 17841, 22515, 24727, 29735, 53523, 67545, 74181, 89205, 123635, 222543, 267615, 370905, 469813, 1112715, 1409439, 2349065, 4228317, 7047195, 21141585]

約数ペア:

[(1, 21141585), (3, 7047195), (5, 4228317), (9, 2349065), (15, 1409439), (19, 1112715), (45, 469813), (57, 370905), (79, 267615), (95, 222543), (171, 123635), (237, 89205), (285, 74181), (313, 67545), (395, 53523), (711, 29735), (855, 24727), (939, 22515), (1185, 17841), (1501, 14085), (1565, 13509), (2817, 7505), (3555, 5947), (4503, 4695)]