21006906180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{2071687}}^1$

素因数の和:2071725

約数の個数: 72

約数和(自身を含む): 63691975872

約数和(自身を除く): 42685069692

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 169, 195, 260, 338, 390, 507, 676, 780, 845, 1014, 1690, 2028, 2535, 3380, 5070, 10140, 2071687, 4143374, 6215061, 8286748, 10358435, 12430122, 20716870, 24860244, 26931931, 31075305, 41433740, 53863862, 62150610, 80795793, 107727724, 124301220, 134659655, 161591586, 269319310, 323183172, 350115103, 403978965, 538638620, 700230206, 807957930, 1050345309, 1400460412, 1615915860, 1750575515, 2100690618, 3501151030, 4201381236, 5251726545, 7002302060, 10503453090, 21006906180]

約数ペア:

[(1, 21006906180), (2, 10503453090), (3, 7002302060), (4, 5251726545), (5, 4201381236), (6, 3501151030), (10, 2100690618), (12, 1750575515), (13, 1615915860), (15, 1400460412), (20, 1050345309), (26, 807957930), (30, 700230206), (39, 538638620), (52, 403978965), (60, 350115103), (65, 323183172), (78, 269319310), (130, 161591586), (156, 134659655), (169, 124301220), (195, 107727724), (260, 80795793), (338, 62150610), (390, 53863862), (507, 41433740), (676, 31075305), (780, 26931931), (845, 24860244), (1014, 20716870), (1690, 12430122), (2028, 10358435), (2535, 8286748), (3380, 6215061), (5070, 4143374), (10140, 2071687)]