20967678

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{1657}}^1$

素因数の和:1721

約数の個数: 48

約数和(自身を含む): 49143120

約数和(自身を除く): 28175442

約数列:

[1, 2, 3, 6, 9, 18, 19, 37, 38, 57, 74, 111, 114, 171, 222, 333, 342, 666, 703, 1406, 1657, 2109, 3314, 4218, 4971, 6327, 9942, 12654, 14913, 29826, 31483, 61309, 62966, 94449, 122618, 183927, 188898, 283347, 367854, 551781, 566694, 1103562, 1164871, 2329742, 3494613, 6989226, 10483839, 20967678]

約数ペア:

[(1, 20967678), (2, 10483839), (3, 6989226), (6, 3494613), (9, 2329742), (18, 1164871), (19, 1103562), (37, 566694), (38, 551781), (57, 367854), (74, 283347), (111, 188898), (114, 183927), (171, 122618), (222, 94449), (333, 62966), (342, 61309), (666, 31483), (703, 29826), (1406, 14913), (1657, 12654), (2109, 9942), (3314, 6327), (4218, 4971)]