21888825

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{173}}^1\times {\mathrm{241}}^1$

素因数の和:434

約数の個数: 48

約数和(自身を含む): 41771136

約数和(自身を除く): 19882311

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 173, 175, 241, 519, 525, 723, 865, 1205, 1211, 1687, 2595, 3615, 3633, 4325, 5061, 6025, 6055, 8435, 12975, 18075, 18165, 25305, 30275, 41693, 42175, 90825, 125079, 126525, 208465, 291851, 625395, 875553, 1042325, 1459255, 3126975, 4377765, 7296275, 21888825]

約数ペア:

[(1, 21888825), (3, 7296275), (5, 4377765), (7, 3126975), (15, 1459255), (21, 1042325), (25, 875553), (35, 625395), (75, 291851), (105, 208465), (173, 126525), (175, 125079), (241, 90825), (519, 42175), (525, 41693), (723, 30275), (865, 25305), (1205, 18165), (1211, 18075), (1687, 12975), (2595, 8435), (3615, 6055), (3633, 6025), (4325, 5061)]