19989482

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{239}}^1$

素因数の和:362

約数の個数: 32

約数和(自身を含む): 33177600

約数和(自身を除く): 13188118

約数列:

[1, 2, 19, 31, 38, 62, 71, 142, 239, 478, 589, 1178, 1349, 2201, 2698, 4402, 4541, 7409, 9082, 14818, 16969, 33938, 41819, 83638, 140771, 281542, 322411, 526039, 644822, 1052078, 9994741, 19989482]

約数ペア:

[(1, 19989482), (2, 9994741), (19, 1052078), (31, 644822), (38, 526039), (62, 322411), (71, 281542), (142, 140771), (239, 83638), (478, 41819), (589, 33938), (1178, 16969), (1349, 14818), (2201, 9082), (2698, 7409), (4402, 4541)]