21920724

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{2351}}^1$

素因数の和:2405

約数の個数: 72

約数和(自身を含む): 65065728

約数和(自身を除く): 43145004

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 37, 42, 63, 74, 84, 111, 126, 148, 222, 252, 259, 333, 444, 518, 666, 777, 1036, 1332, 1554, 2331, 2351, 3108, 4662, 4702, 7053, 9324, 9404, 14106, 16457, 21159, 28212, 32914, 42318, 49371, 65828, 84636, 86987, 98742, 148113, 173974, 197484, 260961, 296226, 347948, 521922, 592452, 608909, 782883, 1043844, 1217818, 1565766, 1826727, 2435636, 3131532, 3653454, 5480181, 7306908, 10960362, 21920724]

約数ペア:

[(1, 21920724), (2, 10960362), (3, 7306908), (4, 5480181), (6, 3653454), (7, 3131532), (9, 2435636), (12, 1826727), (14, 1565766), (18, 1217818), (21, 1043844), (28, 782883), (36, 608909), (37, 592452), (42, 521922), (63, 347948), (74, 296226), (84, 260961), (111, 197484), (126, 173974), (148, 148113), (222, 98742), (252, 86987), (259, 84636), (333, 65828), (444, 49371), (518, 42318), (666, 32914), (777, 28212), (1036, 21159), (1332, 16457), (1554, 14106), (2331, 9404), (2351, 9324), (3108, 7053), (4662, 4702)]