21463715

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{293}}^1$

素因数の和:348

約数の個数: 48

約数和(自身を含む): 33784128

約数和(自身を除く): 12320413

約数列:

[1, 5, 7, 13, 23, 35, 49, 65, 91, 115, 161, 245, 293, 299, 455, 637, 805, 1127, 1465, 1495, 2051, 2093, 3185, 3809, 5635, 6739, 10255, 10465, 14357, 14651, 19045, 26663, 33695, 47173, 71785, 73255, 87607, 133315, 186641, 235865, 330211, 438035, 613249, 933205, 1651055, 3066245, 4292743, 21463715]

約数ペア:

[(1, 21463715), (5, 4292743), (7, 3066245), (13, 1651055), (23, 933205), (35, 613249), (49, 438035), (65, 330211), (91, 235865), (115, 186641), (161, 133315), (245, 87607), (293, 73255), (299, 71785), (455, 47173), (637, 33695), (805, 26663), (1127, 19045), (1465, 14651), (1495, 14357), (2051, 10465), (2093, 10255), (3185, 6739), (3809, 5635)]