21203700

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{439}}^1$

素因数の和:486

約数の個数: 144

約数和(自身を含む): 73328640

約数和(自身を除く): 52124940

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 23, 25, 28, 30, 35, 42, 46, 50, 60, 69, 70, 75, 84, 92, 100, 105, 115, 138, 140, 150, 161, 175, 210, 230, 276, 300, 322, 345, 350, 420, 439, 460, 483, 525, 575, 644, 690, 700, 805, 878, 966, 1050, 1150, 1317, 1380, 1610, 1725, 1756, 1932, 2100, 2195, 2300, 2415, 2634, 3073, 3220, 3450, 4025, 4390, 4830, 5268, 6146, 6585, 6900, 8050, 8780, 9219, 9660, 10097, 10975, 12075, 12292, 13170, 15365, 16100, 18438, 20194, 21950, 24150, 26340, 30291, 30730, 32925, 36876, 40388, 43900, 46095, 48300, 50485, 60582, 61460, 65850, 70679, 76825, 92190, 100970, 121164, 131700, 141358, 151455, 153650, 184380, 201940, 212037, 230475, 252425, 282716, 302910, 307300, 353395, 424074, 460950, 504850, 605820, 706790, 757275, 848148, 921900, 1009700, 1060185, 1413580, 1514550, 1766975, 2120370, 3029100, 3533950, 4240740, 5300925, 7067900, 10601850, 21203700]

約数ペア:

[(1, 21203700), (2, 10601850), (3, 7067900), (4, 5300925), (5, 4240740), (6, 3533950), (7, 3029100), (10, 2120370), (12, 1766975), (14, 1514550), (15, 1413580), (20, 1060185), (21, 1009700), (23, 921900), (25, 848148), (28, 757275), (30, 706790), (35, 605820), (42, 504850), (46, 460950), (50, 424074), (60, 353395), (69, 307300), (70, 302910), (75, 282716), (84, 252425), (92, 230475), (100, 212037), (105, 201940), (115, 184380), (138, 153650), (140, 151455), (150, 141358), (161, 131700), (175, 121164), (210, 100970), (230, 92190), (276, 76825), (300, 70679), (322, 65850), (345, 61460), (350, 60582), (420, 50485), (439, 48300), (460, 46095), (483, 43900), (525, 40388), (575, 36876), (644, 32925), (690, 30730), (700, 30291), (805, 26340), (878, 24150), (966, 21950), (1050, 20194), (1150, 18438), (1317, 16100), (1380, 15365), (1610, 13170), (1725, 12292), (1756, 12075), (1932, 10975), (2100, 10097), (2195, 9660), (2300, 9219), (2415, 8780), (2634, 8050), (3073, 6900), (3220, 6585), (3450, 6146), (4025, 5268), (4390, 4830)]