217243908

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{27809}}^1$

素因数の和:27857

約数の個数: 72

約数和(自身を含む): 647861760

約数和(自身を除く): 430617852

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 31, 36, 42, 62, 63, 84, 93, 124, 126, 186, 217, 252, 279, 372, 434, 558, 651, 868, 1116, 1302, 1953, 2604, 3906, 7812, 27809, 55618, 83427, 111236, 166854, 194663, 250281, 333708, 389326, 500562, 583989, 778652, 862079, 1001124, 1167978, 1724158, 1751967, 2335956, 2586237, 3448316, 3503934, 5172474, 6034553, 7007868, 7758711, 10344948, 12069106, 15517422, 18103659, 24138212, 31034844, 36207318, 54310977, 72414636, 108621954, 217243908]

約数ペア:

[(1, 217243908), (2, 108621954), (3, 72414636), (4, 54310977), (6, 36207318), (7, 31034844), (9, 24138212), (12, 18103659), (14, 15517422), (18, 12069106), (21, 10344948), (28, 7758711), (31, 7007868), (36, 6034553), (42, 5172474), (62, 3503934), (63, 3448316), (84, 2586237), (93, 2335956), (124, 1751967), (126, 1724158), (186, 1167978), (217, 1001124), (252, 862079), (279, 778652), (372, 583989), (434, 500562), (558, 389326), (651, 333708), (868, 250281), (1116, 194663), (1302, 166854), (1953, 111236), (2604, 83427), (3906, 55618), (7812, 27809)]