21364735

素因数分解:

$5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1$

素因数の和:176

約数の個数: 48

約数和(自身を含む): 32175360

約数和(自身を除く): 10810625

約数列:

[1, 5, 7, 29, 31, 35, 49, 97, 145, 155, 203, 217, 245, 485, 679, 899, 1015, 1085, 1421, 1519, 2813, 3007, 3395, 4495, 4753, 6293, 7105, 7595, 14065, 15035, 19691, 21049, 23765, 31465, 44051, 87203, 98455, 105245, 137837, 147343, 220255, 436015, 610421, 689185, 736715, 3052105, 4272947, 21364735]

約数ペア:

[(1, 21364735), (5, 4272947), (7, 3052105), (29, 736715), (31, 689185), (35, 610421), (49, 436015), (97, 220255), (145, 147343), (155, 137837), (203, 105245), (217, 98455), (245, 87203), (485, 44051), (679, 31465), (899, 23765), (1015, 21049), (1085, 19691), (1421, 15035), (1519, 14065), (2813, 7595), (3007, 7105), (3395, 6293), (4495, 4753)]