28657566

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{2879}}^1$

素因数の和:2973

約数の個数: 48

約数和(自身を含む): 71884800

約数和(自身を除く): 43227234

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 79, 126, 158, 237, 474, 553, 711, 1106, 1422, 1659, 2879, 3318, 4977, 5758, 8637, 9954, 17274, 20153, 25911, 40306, 51822, 60459, 120918, 181377, 227441, 362754, 454882, 682323, 1364646, 1592087, 2046969, 3184174, 4093938, 4776261, 9552522, 14328783, 28657566]

約数ペア:

[(1, 28657566), (2, 14328783), (3, 9552522), (6, 4776261), (7, 4093938), (9, 3184174), (14, 2046969), (18, 1592087), (21, 1364646), (42, 682323), (63, 454882), (79, 362754), (126, 227441), (158, 181377), (237, 120918), (474, 60459), (553, 51822), (711, 40306), (1106, 25911), (1422, 20153), (1659, 17274), (2879, 9954), (3318, 8637), (4977, 5758)]