21000833316

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{308491}}^1$

素因数の和:308593

約数の個数: 72

約数和(自身を含む): 55696379648

約数和(自身を除く): 34695546332

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 61, 62, 93, 122, 124, 183, 186, 244, 279, 366, 372, 549, 558, 732, 1098, 1116, 1891, 2196, 3782, 5673, 7564, 11346, 17019, 22692, 34038, 68076, 308491, 616982, 925473, 1233964, 1850946, 2776419, 3701892, 5552838, 9563221, 11105676, 18817951, 19126442, 28689663, 37635902, 38252884, 56453853, 57379326, 75271804, 86068989, 112907706, 114758652, 169361559, 172137978, 225815412, 338723118, 344275956, 583356481, 677446236, 1166712962, 1750069443, 2333425924, 3500138886, 5250208329, 7000277772, 10500416658, 21000833316]

約数ペア:

[(1, 21000833316), (2, 10500416658), (3, 7000277772), (4, 5250208329), (6, 3500138886), (9, 2333425924), (12, 1750069443), (18, 1166712962), (31, 677446236), (36, 583356481), (61, 344275956), (62, 338723118), (93, 225815412), (122, 172137978), (124, 169361559), (183, 114758652), (186, 112907706), (244, 86068989), (279, 75271804), (366, 57379326), (372, 56453853), (549, 38252884), (558, 37635902), (732, 28689663), (1098, 19126442), (1116, 18817951), (1891, 11105676), (2196, 9563221), (3782, 5552838), (5673, 3701892), (7564, 2776419), (11346, 1850946), (17019, 1233964), (22692, 925473), (34038, 616982), (68076, 308491)]