21410625

素因数分解:

$3^1\times 5^4\times {\mathrm{19}}^1\times {\mathrm{601}}^1$

素因数の和:643

約数の個数: 40

約数和(自身を含む): 37612960

約数和(自身を除く): 16202335

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 95, 125, 285, 375, 475, 601, 625, 1425, 1803, 1875, 2375, 3005, 7125, 9015, 11419, 11875, 15025, 34257, 35625, 45075, 57095, 75125, 171285, 225375, 285475, 375625, 856425, 1126875, 1427375, 4282125, 7136875, 21410625]

約数ペア:

[(1, 21410625), (3, 7136875), (5, 4282125), (15, 1427375), (19, 1126875), (25, 856425), (57, 375625), (75, 285475), (95, 225375), (125, 171285), (285, 75125), (375, 57095), (475, 45075), (601, 35625), (625, 34257), (1425, 15025), (1803, 11875), (1875, 11419), (2375, 9015), (3005, 7125)]