21295800

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{11831}}^1$

素因数の和:11853

約数の個数: 72

約数和(自身を含む): 71524440

約数和(自身を除く): 50228640

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 30, 36, 40, 45, 50, 60, 72, 75, 90, 100, 120, 150, 180, 200, 225, 300, 360, 450, 600, 900, 1800, 11831, 23662, 35493, 47324, 59155, 70986, 94648, 106479, 118310, 141972, 177465, 212958, 236620, 283944, 295775, 354930, 425916, 473240, 532395, 591550, 709860, 851832, 887325, 1064790, 1183100, 1419720, 1774650, 2129580, 2366200, 2661975, 3549300, 4259160, 5323950, 7098600, 10647900, 21295800]

約数ペア:

[(1, 21295800), (2, 10647900), (3, 7098600), (4, 5323950), (5, 4259160), (6, 3549300), (8, 2661975), (9, 2366200), (10, 2129580), (12, 1774650), (15, 1419720), (18, 1183100), (20, 1064790), (24, 887325), (25, 851832), (30, 709860), (36, 591550), (40, 532395), (45, 473240), (50, 425916), (60, 354930), (72, 295775), (75, 283944), (90, 236620), (100, 212958), (120, 177465), (150, 141972), (180, 118310), (200, 106479), (225, 94648), (300, 70986), (360, 59155), (450, 47324), (600, 35493), (900, 23662), (1800, 11831)]