21619425

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{151}}^1$

素因数の和:270

約数の個数: 48

約数和(自身を含む): 37997568

約数和(自身を除く): 16378143

約数列:

[1, 3, 5, 15, 23, 25, 69, 75, 83, 115, 151, 249, 345, 415, 453, 575, 755, 1245, 1725, 1909, 2075, 2265, 3473, 3775, 5727, 6225, 9545, 10419, 11325, 12533, 17365, 28635, 37599, 47725, 52095, 62665, 86825, 143175, 187995, 260475, 288259, 313325, 864777, 939975, 1441295, 4323885, 7206475, 21619425]

約数ペア:

[(1, 21619425), (3, 7206475), (5, 4323885), (15, 1441295), (23, 939975), (25, 864777), (69, 313325), (75, 288259), (83, 260475), (115, 187995), (151, 143175), (249, 86825), (345, 62665), (415, 52095), (453, 47725), (575, 37599), (755, 28635), (1245, 17365), (1725, 12533), (1909, 11325), (2075, 10419), (2265, 9545), (3473, 6225), (3775, 5727)]