19503328

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{271}}^1$

素因数の和:467

約数の個数: 48

約数和(自身を含む): 41743296

約数和(自身を除く): 22239968

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 173, 208, 271, 346, 416, 542, 692, 1084, 1384, 2168, 2249, 2768, 3523, 4336, 4498, 5536, 7046, 8672, 8996, 14092, 17992, 28184, 35984, 46883, 56368, 71968, 93766, 112736, 187532, 375064, 609479, 750128, 1218958, 1500256, 2437916, 4875832, 9751664, 19503328]

約数ペア:

[(1, 19503328), (2, 9751664), (4, 4875832), (8, 2437916), (13, 1500256), (16, 1218958), (26, 750128), (32, 609479), (52, 375064), (104, 187532), (173, 112736), (208, 93766), (271, 71968), (346, 56368), (416, 46883), (542, 35984), (692, 28184), (1084, 17992), (1384, 14092), (2168, 8996), (2249, 8672), (2768, 7046), (3523, 5536), (4336, 4498)]