21801240

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{2633}}^1$

素因数の和:2673

約数の個数: 96

約数和(自身を含む): 73962720

約数和(自身を除く): 52161480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 30, 36, 40, 45, 46, 60, 69, 72, 90, 92, 115, 120, 138, 180, 184, 207, 230, 276, 345, 360, 414, 460, 552, 690, 828, 920, 1035, 1380, 1656, 2070, 2633, 2760, 4140, 5266, 7899, 8280, 10532, 13165, 15798, 21064, 23697, 26330, 31596, 39495, 47394, 52660, 60559, 63192, 78990, 94788, 105320, 118485, 121118, 157980, 181677, 189576, 236970, 242236, 302795, 315960, 363354, 473940, 484472, 545031, 605590, 726708, 908385, 947880, 1090062, 1211180, 1453416, 1816770, 2180124, 2422360, 2725155, 3633540, 4360248, 5450310, 7267080, 10900620, 21801240]

約数ペア:

[(1, 21801240), (2, 10900620), (3, 7267080), (4, 5450310), (5, 4360248), (6, 3633540), (8, 2725155), (9, 2422360), (10, 2180124), (12, 1816770), (15, 1453416), (18, 1211180), (20, 1090062), (23, 947880), (24, 908385), (30, 726708), (36, 605590), (40, 545031), (45, 484472), (46, 473940), (60, 363354), (69, 315960), (72, 302795), (90, 242236), (92, 236970), (115, 189576), (120, 181677), (138, 157980), (180, 121118), (184, 118485), (207, 105320), (230, 94788), (276, 78990), (345, 63192), (360, 60559), (414, 52660), (460, 47394), (552, 39495), (690, 31596), (828, 26330), (920, 23697), (1035, 21064), (1380, 15798), (1656, 13165), (2070, 10532), (2633, 8280), (2760, 7899), (4140, 5266)]