20912850

素因数分解:

$2^1\times 3^3\times 5^2\times 7^1\times {\mathrm{2213}}^1$

素因数の和:2241

約数の個数: 96

約数和(自身を含む): 65888640

約数和(自身を除く): 44975790

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 27, 30, 35, 42, 45, 50, 54, 63, 70, 75, 90, 105, 126, 135, 150, 175, 189, 210, 225, 270, 315, 350, 378, 450, 525, 630, 675, 945, 1050, 1350, 1575, 1890, 2213, 3150, 4426, 4725, 6639, 9450, 11065, 13278, 15491, 19917, 22130, 30982, 33195, 39834, 46473, 55325, 59751, 66390, 77455, 92946, 99585, 110650, 119502, 139419, 154910, 165975, 199170, 232365, 278838, 298755, 331950, 387275, 418257, 464730, 497925, 597510, 697095, 774550, 836514, 995850, 1161825, 1394190, 1493775, 2091285, 2323650, 2987550, 3485475, 4182570, 6970950, 10456425, 20912850]

約数ペア:

[(1, 20912850), (2, 10456425), (3, 6970950), (5, 4182570), (6, 3485475), (7, 2987550), (9, 2323650), (10, 2091285), (14, 1493775), (15, 1394190), (18, 1161825), (21, 995850), (25, 836514), (27, 774550), (30, 697095), (35, 597510), (42, 497925), (45, 464730), (50, 418257), (54, 387275), (63, 331950), (70, 298755), (75, 278838), (90, 232365), (105, 199170), (126, 165975), (135, 154910), (150, 139419), (175, 119502), (189, 110650), (210, 99585), (225, 92946), (270, 77455), (315, 66390), (350, 59751), (378, 55325), (450, 46473), (525, 39834), (630, 33195), (675, 30982), (945, 22130), (1050, 19917), (1350, 15491), (1575, 13278), (1890, 11065), (2213, 9450), (3150, 6639), (4426, 4725)]