19181318

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{157}}^1$

素因数の和:336

約数の個数: 32

約数和(自身を含む): 32277504

約数和(自身を除く): 13096186

約数列:

[1, 2, 13, 26, 37, 74, 127, 157, 254, 314, 481, 962, 1651, 2041, 3302, 4082, 4699, 5809, 9398, 11618, 19939, 39878, 61087, 75517, 122174, 151034, 259207, 518414, 737743, 1475486, 9590659, 19181318]

約数ペア:

[(1, 19181318), (2, 9590659), (13, 1475486), (26, 737743), (37, 518414), (74, 259207), (127, 151034), (157, 122174), (254, 75517), (314, 61087), (481, 39878), (962, 19939), (1651, 11618), (2041, 9398), (3302, 5809), (4082, 4699)]