21575568

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{409}}^1$

素因数の和:584

約数の個数: 80

約数和(自身を含む): 64261760

約数和(自身を除く): 42686192

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 157, 168, 314, 336, 409, 471, 628, 818, 942, 1099, 1227, 1256, 1636, 1884, 2198, 2454, 2512, 2863, 3272, 3297, 3768, 4396, 4908, 5726, 6544, 6594, 7536, 8589, 8792, 9816, 11452, 13188, 17178, 17584, 19632, 22904, 26376, 34356, 45808, 52752, 64213, 68712, 128426, 137424, 192639, 256852, 385278, 449491, 513704, 770556, 898982, 1027408, 1348473, 1541112, 1797964, 2696946, 3082224, 3595928, 5393892, 7191856, 10787784, 21575568]

約数ペア:

[(1, 21575568), (2, 10787784), (3, 7191856), (4, 5393892), (6, 3595928), (7, 3082224), (8, 2696946), (12, 1797964), (14, 1541112), (16, 1348473), (21, 1027408), (24, 898982), (28, 770556), (42, 513704), (48, 449491), (56, 385278), (84, 256852), (112, 192639), (157, 137424), (168, 128426), (314, 68712), (336, 64213), (409, 52752), (471, 45808), (628, 34356), (818, 26376), (942, 22904), (1099, 19632), (1227, 17584), (1256, 17178), (1636, 13188), (1884, 11452), (2198, 9816), (2454, 8792), (2512, 8589), (2863, 7536), (3272, 6594), (3297, 6544), (3768, 5726), (4396, 4908)]