21628140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{101}}^1$

素因数の和:239

約数の個数: 96

約数和(自身を含む): 63334656

約数和(自身を除く): 41706516

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 83, 86, 101, 129, 166, 172, 202, 215, 249, 258, 303, 332, 404, 415, 430, 498, 505, 516, 606, 645, 830, 860, 996, 1010, 1212, 1245, 1290, 1515, 1660, 2020, 2490, 2580, 3030, 3569, 4343, 4980, 6060, 7138, 8383, 8686, 10707, 13029, 14276, 16766, 17372, 17845, 21414, 21715, 25149, 26058, 33532, 35690, 41915, 42828, 43430, 50298, 52116, 53535, 65145, 71380, 83830, 86860, 100596, 107070, 125745, 130290, 167660, 214140, 251490, 260580, 360469, 502980, 720938, 1081407, 1441876, 1802345, 2162814, 3604690, 4325628, 5407035, 7209380, 10814070, 21628140]

約数ペア:

[(1, 21628140), (2, 10814070), (3, 7209380), (4, 5407035), (5, 4325628), (6, 3604690), (10, 2162814), (12, 1802345), (15, 1441876), (20, 1081407), (30, 720938), (43, 502980), (60, 360469), (83, 260580), (86, 251490), (101, 214140), (129, 167660), (166, 130290), (172, 125745), (202, 107070), (215, 100596), (249, 86860), (258, 83830), (303, 71380), (332, 65145), (404, 53535), (415, 52116), (430, 50298), (498, 43430), (505, 42828), (516, 41915), (606, 35690), (645, 33532), (830, 26058), (860, 25149), (996, 21715), (1010, 21414), (1212, 17845), (1245, 17372), (1290, 16766), (1515, 14276), (1660, 13029), (2020, 10707), (2490, 8686), (2580, 8383), (3030, 7138), (3569, 6060), (4343, 4980)]