19797544

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{233}}^1$

素因数の和:314

約数の個数: 64

約数和(自身を含む): 43243200

約数和(自身を除く): 23445656

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 43, 52, 76, 86, 104, 152, 172, 233, 247, 344, 466, 494, 559, 817, 932, 988, 1118, 1634, 1864, 1976, 2236, 3029, 3268, 4427, 4472, 6058, 6536, 8854, 10019, 10621, 12116, 17708, 20038, 21242, 24232, 35416, 40076, 42484, 57551, 80152, 84968, 115102, 130247, 190361, 230204, 260494, 380722, 460408, 520988, 761444, 1041976, 1522888, 2474693, 4949386, 9898772, 19797544]

約数ペア:

[(1, 19797544), (2, 9898772), (4, 4949386), (8, 2474693), (13, 1522888), (19, 1041976), (26, 761444), (38, 520988), (43, 460408), (52, 380722), (76, 260494), (86, 230204), (104, 190361), (152, 130247), (172, 115102), (233, 84968), (247, 80152), (344, 57551), (466, 42484), (494, 40076), (559, 35416), (817, 24232), (932, 21242), (988, 20038), (1118, 17708), (1634, 12116), (1864, 10621), (1976, 10019), (2236, 8854), (3029, 6536), (3268, 6058), (4427, 4472)]