20863634

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{37}}^1\times {\mathrm{71}}^1$

素因数の和:159

約数の個数: 48

約数和(自身を含む): 37526976

約数和(自身を除く): 16663342

約数列:

[1, 2, 11, 19, 22, 37, 38, 71, 74, 142, 209, 361, 407, 418, 703, 722, 781, 814, 1349, 1406, 1562, 2627, 2698, 3971, 5254, 7733, 7942, 13357, 14839, 15466, 25631, 26714, 28897, 29678, 49913, 51262, 57794, 99826, 146927, 281941, 293854, 549043, 563882, 948347, 1098086, 1896694, 10431817, 20863634]

約数ペア:

[(1, 20863634), (2, 10431817), (11, 1896694), (19, 1098086), (22, 948347), (37, 563882), (38, 549043), (71, 293854), (74, 281941), (142, 146927), (209, 99826), (361, 57794), (407, 51262), (418, 49913), (703, 29678), (722, 28897), (781, 26714), (814, 25631), (1349, 15466), (1406, 14839), (1562, 13357), (2627, 7942), (2698, 7733), (3971, 5254)]