210908607

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{557}}^1$

素因数の和:672

約数の個数: 64

約数和(自身を含む): 369976320

約数和(自身を除く): 159067713

約数列:

[1, 3, 7, 13, 19, 21, 39, 57, 73, 91, 133, 219, 247, 273, 399, 511, 557, 741, 949, 1387, 1533, 1671, 1729, 2847, 3899, 4161, 5187, 6643, 7241, 9709, 10583, 11697, 18031, 19929, 21723, 29127, 31749, 40661, 50687, 54093, 74081, 121983, 126217, 137579, 152061, 222243, 284627, 378651, 412737, 528593, 772559, 853881, 963053, 1585779, 2317677, 2889159, 3700151, 5407913, 10043267, 11100453, 16223739, 30129801, 70302869, 210908607]

約数ペア:

[(1, 210908607), (3, 70302869), (7, 30129801), (13, 16223739), (19, 11100453), (21, 10043267), (39, 5407913), (57, 3700151), (73, 2889159), (91, 2317677), (133, 1585779), (219, 963053), (247, 853881), (273, 772559), (399, 528593), (511, 412737), (557, 378651), (741, 284627), (949, 222243), (1387, 152061), (1533, 137579), (1671, 126217), (1729, 121983), (2847, 74081), (3899, 54093), (4161, 50687), (5187, 40661), (6643, 31749), (7241, 29127), (9709, 21723), (10583, 19929), (11697, 18031)]