21711780

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1297}}^1$

素因数の和:1346

約数の個数: 96

約数和(自身を含む): 69780480

約数和(自身を除く): 48068700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 31, 36, 45, 54, 60, 62, 90, 93, 108, 124, 135, 155, 180, 186, 270, 279, 310, 372, 465, 540, 558, 620, 837, 930, 1116, 1297, 1395, 1674, 1860, 2594, 2790, 3348, 3891, 4185, 5188, 5580, 6485, 7782, 8370, 11673, 12970, 15564, 16740, 19455, 23346, 25940, 35019, 38910, 40207, 46692, 58365, 70038, 77820, 80414, 116730, 120621, 140076, 160828, 175095, 201035, 233460, 241242, 350190, 361863, 402070, 482484, 603105, 700380, 723726, 804140, 1085589, 1206210, 1447452, 1809315, 2171178, 2412420, 3618630, 4342356, 5427945, 7237260, 10855890, 21711780]

約数ペア:

[(1, 21711780), (2, 10855890), (3, 7237260), (4, 5427945), (5, 4342356), (6, 3618630), (9, 2412420), (10, 2171178), (12, 1809315), (15, 1447452), (18, 1206210), (20, 1085589), (27, 804140), (30, 723726), (31, 700380), (36, 603105), (45, 482484), (54, 402070), (60, 361863), (62, 350190), (90, 241242), (93, 233460), (108, 201035), (124, 175095), (135, 160828), (155, 140076), (180, 120621), (186, 116730), (270, 80414), (279, 77820), (310, 70038), (372, 58365), (465, 46692), (540, 40207), (558, 38910), (620, 35019), (837, 25940), (930, 23346), (1116, 19455), (1297, 16740), (1395, 15564), (1674, 12970), (1860, 11673), (2594, 8370), (2790, 7782), (3348, 6485), (3891, 5580), (4185, 5188)]