21229875

素因数分解:

$3^2\times 5^3\times {\mathrm{113}}^1\times {\mathrm{167}}^1$

素因数の和:301

約数の個数: 48

約数和(自身を含む): 38840256

約数和(自身を除く): 17610381

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 113, 125, 167, 225, 339, 375, 501, 565, 835, 1017, 1125, 1503, 1695, 2505, 2825, 4175, 5085, 7515, 8475, 12525, 14125, 18871, 20875, 25425, 37575, 42375, 56613, 62625, 94355, 127125, 169839, 187875, 283065, 471775, 849195, 1415325, 2358875, 4245975, 7076625, 21229875]

約数ペア:

[(1, 21229875), (3, 7076625), (5, 4245975), (9, 2358875), (15, 1415325), (25, 849195), (45, 471775), (75, 283065), (113, 187875), (125, 169839), (167, 127125), (225, 94355), (339, 62625), (375, 56613), (501, 42375), (565, 37575), (835, 25425), (1017, 20875), (1125, 18871), (1503, 14125), (1695, 12525), (2505, 8475), (2825, 7515), (4175, 5085)]