19878816

素因数分解:

$2^5\times 3^1\times {\mathrm{53}}^1\times {\mathrm{3907}}^1$

素因数の和:3973

約数の個数: 48

約数和(自身を含む): 53180064

約数和(自身を除く): 33301248

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 53, 96, 106, 159, 212, 318, 424, 636, 848, 1272, 1696, 2544, 3907, 5088, 7814, 11721, 15628, 23442, 31256, 46884, 62512, 93768, 125024, 187536, 207071, 375072, 414142, 621213, 828284, 1242426, 1656568, 2484852, 3313136, 4969704, 6626272, 9939408, 19878816]

約数ペア:

[(1, 19878816), (2, 9939408), (3, 6626272), (4, 4969704), (6, 3313136), (8, 2484852), (12, 1656568), (16, 1242426), (24, 828284), (32, 621213), (48, 414142), (53, 375072), (96, 207071), (106, 187536), (159, 125024), (212, 93768), (318, 62512), (424, 46884), (636, 31256), (848, 23442), (1272, 15628), (1696, 11721), (2544, 7814), (3907, 5088)]