21661740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{7079}}^1$

素因数の和:7111

約数の個数: 72

約数和(自身を含む): 69582240

約数和(自身を除く): 47920500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 85, 90, 102, 153, 170, 180, 204, 255, 306, 340, 510, 612, 765, 1020, 1530, 3060, 7079, 14158, 21237, 28316, 35395, 42474, 63711, 70790, 84948, 106185, 120343, 127422, 141580, 212370, 240686, 254844, 318555, 361029, 424740, 481372, 601715, 637110, 722058, 1083087, 1203430, 1274220, 1444116, 1805145, 2166174, 2406860, 3610290, 4332348, 5415435, 7220580, 10830870, 21661740]

約数ペア:

[(1, 21661740), (2, 10830870), (3, 7220580), (4, 5415435), (5, 4332348), (6, 3610290), (9, 2406860), (10, 2166174), (12, 1805145), (15, 1444116), (17, 1274220), (18, 1203430), (20, 1083087), (30, 722058), (34, 637110), (36, 601715), (45, 481372), (51, 424740), (60, 361029), (68, 318555), (85, 254844), (90, 240686), (102, 212370), (153, 141580), (170, 127422), (180, 120343), (204, 106185), (255, 84948), (306, 70790), (340, 63711), (510, 42474), (612, 35395), (765, 28316), (1020, 21237), (1530, 14158), (3060, 7079)]