18996984

素因数分解:

$2^3\times 3^3\times {\mathrm{37}}^1\times {\mathrm{2377}}^1$

素因数の和:2429

約数の個数: 64

約数和(自身を含む): 54218400

約数和(自身を除く): 35221416

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 37, 54, 72, 74, 108, 111, 148, 216, 222, 296, 333, 444, 666, 888, 999, 1332, 1998, 2377, 2664, 3996, 4754, 7131, 7992, 9508, 14262, 19016, 21393, 28524, 42786, 57048, 64179, 85572, 87949, 128358, 171144, 175898, 256716, 263847, 351796, 513432, 527694, 703592, 791541, 1055388, 1583082, 2110776, 2374623, 3166164, 4749246, 6332328, 9498492, 18996984]

約数ペア:

[(1, 18996984), (2, 9498492), (3, 6332328), (4, 4749246), (6, 3166164), (8, 2374623), (9, 2110776), (12, 1583082), (18, 1055388), (24, 791541), (27, 703592), (36, 527694), (37, 513432), (54, 351796), (72, 263847), (74, 256716), (108, 175898), (111, 171144), (148, 128358), (216, 87949), (222, 85572), (296, 64179), (333, 57048), (444, 42786), (666, 28524), (888, 21393), (999, 19016), (1332, 14262), (1998, 9508), (2377, 7992), (2664, 7131), (3996, 4754)]