15117921

素因数分解:

$3^4\times 7^2\times {\mathrm{13}}^1\times {\mathrm{293}}^1$

素因数の和:332

約数の個数: 60

約数和(自身を含む): 28388052

約数和(自身を除く): 13270131

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 49, 63, 81, 91, 117, 147, 189, 273, 293, 351, 441, 567, 637, 819, 879, 1053, 1323, 1911, 2051, 2457, 2637, 3809, 3969, 5733, 6153, 7371, 7911, 11427, 14357, 17199, 18459, 23733, 26663, 34281, 43071, 51597, 55377, 79989, 102843, 129213, 166131, 186641, 239967, 308529, 387639, 559923, 719901, 1162917, 1679769, 2159703, 5039307, 15117921]

約数ペア:

[(1, 15117921), (3, 5039307), (7, 2159703), (9, 1679769), (13, 1162917), (21, 719901), (27, 559923), (39, 387639), (49, 308529), (63, 239967), (81, 186641), (91, 166131), (117, 129213), (147, 102843), (189, 79989), (273, 55377), (293, 51597), (351, 43071), (441, 34281), (567, 26663), (637, 23733), (819, 18459), (879, 17199), (1053, 14357), (1323, 11427), (1911, 7911), (2051, 7371), (2457, 6153), (2637, 5733), (3809, 3969)]