21733480

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1031}}^1$

素因数の和:1090

約数の個数: 64

約数和(自身を含む): 53498880

約数和(自身を除く): 31765400

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 31, 34, 40, 62, 68, 85, 124, 136, 155, 170, 248, 310, 340, 527, 620, 680, 1031, 1054, 1240, 2062, 2108, 2635, 4124, 4216, 5155, 5270, 8248, 10310, 10540, 17527, 20620, 21080, 31961, 35054, 41240, 63922, 70108, 87635, 127844, 140216, 159805, 175270, 255688, 319610, 350540, 543337, 639220, 701080, 1086674, 1278440, 2173348, 2716685, 4346696, 5433370, 10866740, 21733480]

約数ペア:

[(1, 21733480), (2, 10866740), (4, 5433370), (5, 4346696), (8, 2716685), (10, 2173348), (17, 1278440), (20, 1086674), (31, 701080), (34, 639220), (40, 543337), (62, 350540), (68, 319610), (85, 255688), (124, 175270), (136, 159805), (155, 140216), (170, 127844), (248, 87635), (310, 70108), (340, 63922), (527, 41240), (620, 35054), (680, 31961), (1031, 21080), (1054, 20620), (1240, 17527), (2062, 10540), (2108, 10310), (2635, 8248), (4124, 5270), (4216, 5155)]