216851937

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{181}}^1\times {\mathrm{293}}^1$

素因数の和:553

約数の個数: 32

約数和(自身を含む): 308206080

約数和(自身を除く): 91354143

約数列:

[1, 3, 29, 47, 87, 141, 181, 293, 543, 879, 1363, 4089, 5249, 8497, 8507, 13771, 15747, 25491, 25521, 41313, 53033, 159099, 246703, 399359, 740109, 1198077, 1537957, 2492551, 4613871, 7477653, 72283979, 216851937]

約数ペア:

[(1, 216851937), (3, 72283979), (29, 7477653), (47, 4613871), (87, 2492551), (141, 1537957), (181, 1198077), (293, 740109), (543, 399359), (879, 246703), (1363, 159099), (4089, 53033), (5249, 41313), (8497, 25521), (8507, 25491), (13771, 15747)]