18503776

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{811}}^1$

素因数の和:875

約数の個数: 48

約数和(自身を含む): 39287808

約数和(自身を除く): 20784032

約数列:

[1, 2, 4, 8, 16, 23, 31, 32, 46, 62, 92, 124, 184, 248, 368, 496, 713, 736, 811, 992, 1426, 1622, 2852, 3244, 5704, 6488, 11408, 12976, 18653, 22816, 25141, 25952, 37306, 50282, 74612, 100564, 149224, 201128, 298448, 402256, 578243, 596896, 804512, 1156486, 2312972, 4625944, 9251888, 18503776]

約数ペア:

[(1, 18503776), (2, 9251888), (4, 4625944), (8, 2312972), (16, 1156486), (23, 804512), (31, 596896), (32, 578243), (46, 402256), (62, 298448), (92, 201128), (124, 149224), (184, 100564), (248, 74612), (368, 50282), (496, 37306), (713, 25952), (736, 25141), (811, 22816), (992, 18653), (1426, 12976), (1622, 11408), (2852, 6488), (3244, 5704)]