28212228

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{373}}^1$

素因数の和:585

約数の個数: 72

約数和(自身を含む): 78414336

約数和(自身を除く): 50202108

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 191, 198, 373, 382, 396, 573, 746, 764, 1119, 1146, 1492, 1719, 2101, 2238, 2292, 3357, 3438, 4103, 4202, 4476, 6303, 6714, 6876, 8206, 8404, 12309, 12606, 13428, 16412, 18909, 24618, 25212, 36927, 37818, 49236, 71243, 73854, 75636, 142486, 147708, 213729, 284972, 427458, 641187, 783673, 854916, 1282374, 1567346, 2351019, 2564748, 3134692, 4702038, 7053057, 9404076, 14106114, 28212228]

約数ペア:

[(1, 28212228), (2, 14106114), (3, 9404076), (4, 7053057), (6, 4702038), (9, 3134692), (11, 2564748), (12, 2351019), (18, 1567346), (22, 1282374), (33, 854916), (36, 783673), (44, 641187), (66, 427458), (99, 284972), (132, 213729), (191, 147708), (198, 142486), (373, 75636), (382, 73854), (396, 71243), (573, 49236), (746, 37818), (764, 36927), (1119, 25212), (1146, 24618), (1492, 18909), (1719, 16412), (2101, 13428), (2238, 12606), (2292, 12309), (3357, 8404), (3438, 8206), (4103, 6876), (4202, 6714), (4476, 6303)]