247251361

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{487}}^1$

素因数の和:625

約数の個数: 32

約数和(自身を含む): 304980480

約数和(自身を除く): 57729119

約数列:

[1, 7, 29, 41, 61, 203, 287, 427, 487, 1189, 1769, 2501, 3409, 8323, 12383, 14123, 17507, 19967, 29707, 72529, 98861, 139769, 207949, 507703, 579043, 861503, 1217987, 4053301, 6030521, 8525909, 35321623, 247251361]

約数ペア:

[(1, 247251361), (7, 35321623), (29, 8525909), (41, 6030521), (61, 4053301), (203, 1217987), (287, 861503), (427, 579043), (487, 507703), (1189, 207949), (1769, 139769), (2501, 98861), (3409, 72529), (8323, 29707), (12383, 19967), (14123, 17507)]