17996790

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1993}}^1$

素因数の和:2053

約数の個数: 64

約数和(自身を含む): 50535936

約数和(自身を除く): 32539146

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 43, 70, 86, 105, 129, 210, 215, 258, 301, 430, 602, 645, 903, 1290, 1505, 1806, 1993, 3010, 3986, 4515, 5979, 9030, 9965, 11958, 13951, 19930, 27902, 29895, 41853, 59790, 69755, 83706, 85699, 139510, 171398, 209265, 257097, 418530, 428495, 514194, 599893, 856990, 1199786, 1285485, 1799679, 2570970, 2999465, 3599358, 5998930, 8998395, 17996790]

約数ペア:

[(1, 17996790), (2, 8998395), (3, 5998930), (5, 3599358), (6, 2999465), (7, 2570970), (10, 1799679), (14, 1285485), (15, 1199786), (21, 856990), (30, 599893), (35, 514194), (42, 428495), (43, 418530), (70, 257097), (86, 209265), (105, 171398), (129, 139510), (210, 85699), (215, 83706), (258, 69755), (301, 59790), (430, 41853), (602, 29895), (645, 27902), (903, 19930), (1290, 13951), (1505, 11958), (1806, 9965), (1993, 9030), (3010, 5979), (3986, 4515)]