18637936

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{1657}}^1$

素因数の和:1721

約数の個数: 40

約数和(自身を含む): 39062480

約数和(自身を除く): 20424544

約数列:

[1, 2, 4, 8, 16, 19, 37, 38, 74, 76, 148, 152, 296, 304, 592, 703, 1406, 1657, 2812, 3314, 5624, 6628, 11248, 13256, 26512, 31483, 61309, 62966, 122618, 125932, 245236, 251864, 490472, 503728, 980944, 1164871, 2329742, 4659484, 9318968, 18637936]

約数ペア:

[(1, 18637936), (2, 9318968), (4, 4659484), (8, 2329742), (16, 1164871), (19, 980944), (37, 503728), (38, 490472), (74, 251864), (76, 245236), (148, 125932), (152, 122618), (296, 62966), (304, 61309), (592, 31483), (703, 26512), (1406, 13256), (1657, 11248), (2812, 6628), (3314, 5624)]