19917252

素因数分解:

$2^2\times 3^5\times {\mathrm{31}}^1\times {\mathrm{661}}^1$

素因数の和:711

約数の個数: 72

約数和(自身を含む): 53976832

約数和(自身を除く): 34059580

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 31, 36, 54, 62, 81, 93, 108, 124, 162, 186, 243, 279, 324, 372, 486, 558, 661, 837, 972, 1116, 1322, 1674, 1983, 2511, 2644, 3348, 3966, 5022, 5949, 7533, 7932, 10044, 11898, 15066, 17847, 20491, 23796, 30132, 35694, 40982, 53541, 61473, 71388, 81964, 107082, 122946, 160623, 184419, 214164, 245892, 321246, 368838, 553257, 642492, 737676, 1106514, 1659771, 2213028, 3319542, 4979313, 6639084, 9958626, 19917252]

約数ペア:

[(1, 19917252), (2, 9958626), (3, 6639084), (4, 4979313), (6, 3319542), (9, 2213028), (12, 1659771), (18, 1106514), (27, 737676), (31, 642492), (36, 553257), (54, 368838), (62, 321246), (81, 245892), (93, 214164), (108, 184419), (124, 160623), (162, 122946), (186, 107082), (243, 81964), (279, 71388), (324, 61473), (372, 53541), (486, 40982), (558, 35694), (661, 30132), (837, 23796), (972, 20491), (1116, 17847), (1322, 15066), (1674, 11898), (1983, 10044), (2511, 7932), (2644, 7533), (3348, 5949), (3966, 5022)]