22221975

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{601}}^1$

素因数の和:660

約数の個数: 48

約数和(自身を含む): 40309920

約数和(自身を除く): 18087945

約数列:

[1, 3, 5, 15, 17, 25, 29, 51, 75, 85, 87, 145, 255, 425, 435, 493, 601, 725, 1275, 1479, 1803, 2175, 2465, 3005, 7395, 9015, 10217, 12325, 15025, 17429, 30651, 36975, 45075, 51085, 52287, 87145, 153255, 255425, 261435, 296293, 435725, 766275, 888879, 1307175, 1481465, 4444395, 7407325, 22221975]

約数ペア:

[(1, 22221975), (3, 7407325), (5, 4444395), (15, 1481465), (17, 1307175), (25, 888879), (29, 766275), (51, 435725), (75, 296293), (85, 261435), (87, 255425), (145, 153255), (255, 87145), (425, 52287), (435, 51085), (493, 45075), (601, 36975), (725, 30651), (1275, 17429), (1479, 15025), (1803, 12325), (2175, 10217), (2465, 9015), (3005, 7395)]