20862842

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{613}}^1$

素因数の和:663

約数の個数: 64

約数和(自身を含む): 44561664

約数和(自身を除く): 23698822

約数列:

[1, 2, 7, 11, 13, 14, 17, 22, 26, 34, 77, 91, 119, 143, 154, 182, 187, 221, 238, 286, 374, 442, 613, 1001, 1226, 1309, 1547, 2002, 2431, 2618, 3094, 4291, 4862, 6743, 7969, 8582, 10421, 13486, 15938, 17017, 20842, 34034, 47201, 55783, 72947, 87659, 94402, 111566, 114631, 135473, 145894, 175318, 229262, 270946, 613613, 802417, 948311, 1227226, 1490203, 1604834, 1896622, 2980406, 10431421, 20862842]

約数ペア:

[(1, 20862842), (2, 10431421), (7, 2980406), (11, 1896622), (13, 1604834), (14, 1490203), (17, 1227226), (22, 948311), (26, 802417), (34, 613613), (77, 270946), (91, 229262), (119, 175318), (143, 145894), (154, 135473), (182, 114631), (187, 111566), (221, 94402), (238, 87659), (286, 72947), (374, 55783), (442, 47201), (613, 34034), (1001, 20842), (1226, 17017), (1309, 15938), (1547, 13486), (2002, 10421), (2431, 8582), (2618, 7969), (3094, 6743), (4291, 4862)]