21624375

素因数分解:

$3^1\times 5^4\times {\mathrm{19}}^1\times {\mathrm{607}}^1$

素因数の和:649

約数の個数: 40

約数和(自身を含む): 37987840

約数和(自身を除く): 16363465

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 95, 125, 285, 375, 475, 607, 625, 1425, 1821, 1875, 2375, 3035, 7125, 9105, 11533, 11875, 15175, 34599, 35625, 45525, 57665, 75875, 172995, 227625, 288325, 379375, 864975, 1138125, 1441625, 4324875, 7208125, 21624375]

約数ペア:

[(1, 21624375), (3, 7208125), (5, 4324875), (15, 1441625), (19, 1138125), (25, 864975), (57, 379375), (75, 288325), (95, 227625), (125, 172995), (285, 75875), (375, 57665), (475, 45525), (607, 35625), (625, 34599), (1425, 15175), (1821, 11875), (1875, 11533), (2375, 9105), (3035, 7125)]