20956962

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{179}}^1$

素因数の和:295

約数の個数: 64

約数和(自身を含む): 48384000

約数和(自身を除く): 27427038

約数列:

[1, 2, 3, 6, 13, 19, 26, 38, 39, 57, 78, 79, 114, 158, 179, 237, 247, 358, 474, 494, 537, 741, 1027, 1074, 1482, 1501, 2054, 2327, 3002, 3081, 3401, 4503, 4654, 6162, 6802, 6981, 9006, 10203, 13962, 14141, 19513, 20406, 28282, 39026, 42423, 44213, 58539, 84846, 88426, 117078, 132639, 183833, 265278, 268679, 367666, 537358, 551499, 806037, 1102998, 1612074, 3492827, 6985654, 10478481, 20956962]

約数ペア:

[(1, 20956962), (2, 10478481), (3, 6985654), (6, 3492827), (13, 1612074), (19, 1102998), (26, 806037), (38, 551499), (39, 537358), (57, 367666), (78, 268679), (79, 265278), (114, 183833), (158, 132639), (179, 117078), (237, 88426), (247, 84846), (358, 58539), (474, 44213), (494, 42423), (537, 39026), (741, 28282), (1027, 20406), (1074, 19513), (1482, 14141), (1501, 13962), (2054, 10203), (2327, 9006), (3002, 6981), (3081, 6802), (3401, 6162), (4503, 4654)]