20653402

素因数分解:

$2^1\times 7^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1$

素因数の和:81

約数の個数: 80

約数和(自身を含む): 43561152

約数和(自身を除く): 22907750

約数列:

[1, 2, 7, 11, 14, 17, 22, 23, 34, 46, 49, 77, 98, 119, 154, 161, 187, 238, 253, 322, 343, 374, 391, 506, 539, 686, 782, 833, 1078, 1127, 1309, 1666, 1771, 2254, 2401, 2618, 2737, 3542, 3773, 4301, 4802, 5474, 5831, 7546, 7889, 8602, 9163, 11662, 12397, 15778, 18326, 19159, 24794, 26411, 30107, 38318, 40817, 52822, 55223, 60214, 64141, 81634, 86779, 110446, 128282, 134113, 173558, 210749, 268226, 421498, 448987, 607453, 897974, 938791, 1214906, 1475243, 1877582, 2950486, 10326701, 20653402]

約数ペア:

[(1, 20653402), (2, 10326701), (7, 2950486), (11, 1877582), (14, 1475243), (17, 1214906), (22, 938791), (23, 897974), (34, 607453), (46, 448987), (49, 421498), (77, 268226), (98, 210749), (119, 173558), (154, 134113), (161, 128282), (187, 110446), (238, 86779), (253, 81634), (322, 64141), (343, 60214), (374, 55223), (391, 52822), (506, 40817), (539, 38318), (686, 30107), (782, 26411), (833, 24794), (1078, 19159), (1127, 18326), (1309, 15778), (1666, 12397), (1771, 11662), (2254, 9163), (2401, 8602), (2618, 7889), (2737, 7546), (3542, 5831), (3773, 5474), (4301, 4802)]