18941475

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{331}}^1$

素因数の和:460

約数の個数: 48

約数和(自身を含む): 36227840

約数和(自身を除く): 17286365

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 109, 175, 327, 331, 525, 545, 763, 993, 1635, 1655, 2289, 2317, 2725, 3815, 4965, 6951, 8175, 8275, 11445, 11585, 19075, 24825, 34755, 36079, 57225, 57925, 108237, 173775, 180395, 252553, 541185, 757659, 901975, 1262765, 2705925, 3788295, 6313825, 18941475]

約数ペア:

[(1, 18941475), (3, 6313825), (5, 3788295), (7, 2705925), (15, 1262765), (21, 901975), (25, 757659), (35, 541185), (75, 252553), (105, 180395), (109, 173775), (175, 108237), (327, 57925), (331, 57225), (525, 36079), (545, 34755), (763, 24825), (993, 19075), (1635, 11585), (1655, 11445), (2289, 8275), (2317, 8175), (2725, 6951), (3815, 4965)]