21606078

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{239}}^1$

素因数の和:337

約数の個数: 64

約数和(自身を含む): 49996800

約数和(自身を除く): 28390722

約数列:

[1, 2, 3, 6, 13, 19, 26, 38, 39, 57, 61, 78, 114, 122, 183, 239, 247, 366, 478, 494, 717, 741, 793, 1159, 1434, 1482, 1586, 2318, 2379, 3107, 3477, 4541, 4758, 6214, 6954, 9082, 9321, 13623, 14579, 15067, 18642, 27246, 29158, 30134, 43737, 45201, 59033, 87474, 90402, 118066, 177099, 189527, 277001, 354198, 379054, 554002, 568581, 831003, 1137162, 1662006, 3601013, 7202026, 10803039, 21606078]

約数ペア:

[(1, 21606078), (2, 10803039), (3, 7202026), (6, 3601013), (13, 1662006), (19, 1137162), (26, 831003), (38, 568581), (39, 554002), (57, 379054), (61, 354198), (78, 277001), (114, 189527), (122, 177099), (183, 118066), (239, 90402), (247, 87474), (366, 59033), (478, 45201), (494, 43737), (717, 30134), (741, 29158), (793, 27246), (1159, 18642), (1434, 15067), (1482, 14579), (1586, 13623), (2318, 9321), (2379, 9082), (3107, 6954), (3477, 6214), (4541, 4758)]