18957616

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{1033}}^1$

素因数の和:1109

約数の個数: 40

約数和(自身を含む): 38977664

約数和(自身を除く): 20020048

約数列:

[1, 2, 4, 8, 16, 31, 37, 62, 74, 124, 148, 248, 296, 496, 592, 1033, 1147, 2066, 2294, 4132, 4588, 8264, 9176, 16528, 18352, 32023, 38221, 64046, 76442, 128092, 152884, 256184, 305768, 512368, 611536, 1184851, 2369702, 4739404, 9478808, 18957616]

約数ペア:

[(1, 18957616), (2, 9478808), (4, 4739404), (8, 2369702), (16, 1184851), (31, 611536), (37, 512368), (62, 305768), (74, 256184), (124, 152884), (148, 128092), (248, 76442), (296, 64046), (496, 38221), (592, 32023), (1033, 18352), (1147, 16528), (2066, 9176), (2294, 8264), (4132, 4588)]