21000306635

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{86719}}^1$

素因数の和:86796

約数の個数: 64

約数和(自身を含む): 34166292480

約数和(自身を除く): 13165985845

約数列:

[1, 5, 7, 11, 17, 35, 37, 55, 77, 85, 119, 185, 187, 259, 385, 407, 595, 629, 935, 1295, 1309, 2035, 2849, 3145, 4403, 6545, 6919, 14245, 22015, 34595, 48433, 86719, 242165, 433595, 607033, 953909, 1474223, 3035165, 3208603, 4769545, 6677363, 7371115, 10319561, 16043015, 16216453, 22460221, 33386815, 35294633, 51597805, 54546251, 81082265, 112301105, 113515171, 176473165, 247062431, 272731255, 381823757, 567575855, 600008761, 1235312155, 1909118785, 3000043805, 4200061327, 21000306635]

約数ペア:

[(1, 21000306635), (5, 4200061327), (7, 3000043805), (11, 1909118785), (17, 1235312155), (35, 600008761), (37, 567575855), (55, 381823757), (77, 272731255), (85, 247062431), (119, 176473165), (185, 113515171), (187, 112301105), (259, 81082265), (385, 54546251), (407, 51597805), (595, 35294633), (629, 33386815), (935, 22460221), (1295, 16216453), (1309, 16043015), (2035, 10319561), (2849, 7371115), (3145, 6677363), (4403, 4769545), (6545, 3208603), (6919, 3035165), (14245, 1474223), (22015, 953909), (34595, 607033), (48433, 433595), (86719, 242165)]