21071340

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{13007}}^1$

素因数の和:13028

約数の個数: 60

約数和(自身を含む): 66106656

約数和(自身を除く): 45035316

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 13007, 26014, 39021, 52028, 65035, 78042, 117063, 130070, 156084, 195105, 234126, 260140, 351189, 390210, 468252, 585315, 702378, 780420, 1053567, 1170630, 1404756, 1755945, 2107134, 2341260, 3511890, 4214268, 5267835, 7023780, 10535670, 21071340]

約数ペア:

[(1, 21071340), (2, 10535670), (3, 7023780), (4, 5267835), (5, 4214268), (6, 3511890), (9, 2341260), (10, 2107134), (12, 1755945), (15, 1404756), (18, 1170630), (20, 1053567), (27, 780420), (30, 702378), (36, 585315), (45, 468252), (54, 390210), (60, 351189), (81, 260140), (90, 234126), (108, 195105), (135, 156084), (162, 130070), (180, 117063), (270, 78042), (324, 65035), (405, 52028), (540, 39021), (810, 26014), (1620, 13007)]