21146928

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^3\times {\mathrm{331}}^1$

素因数の和:375

約数の個数: 80

約数和(自身を含む): 60269952

約数和(自身を除く): 39123024

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 33, 44, 48, 66, 88, 121, 132, 176, 242, 264, 331, 363, 484, 528, 662, 726, 968, 993, 1324, 1331, 1452, 1936, 1986, 2648, 2662, 2904, 3641, 3972, 3993, 5296, 5324, 5808, 7282, 7944, 7986, 10648, 10923, 14564, 15888, 15972, 21296, 21846, 29128, 31944, 40051, 43692, 58256, 63888, 80102, 87384, 120153, 160204, 174768, 240306, 320408, 440561, 480612, 640816, 881122, 961224, 1321683, 1762244, 1922448, 2643366, 3524488, 5286732, 7048976, 10573464, 21146928]

約数ペア:

[(1, 21146928), (2, 10573464), (3, 7048976), (4, 5286732), (6, 3524488), (8, 2643366), (11, 1922448), (12, 1762244), (16, 1321683), (22, 961224), (24, 881122), (33, 640816), (44, 480612), (48, 440561), (66, 320408), (88, 240306), (121, 174768), (132, 160204), (176, 120153), (242, 87384), (264, 80102), (331, 63888), (363, 58256), (484, 43692), (528, 40051), (662, 31944), (726, 29128), (968, 21846), (993, 21296), (1324, 15972), (1331, 15888), (1452, 14564), (1936, 10923), (1986, 10648), (2648, 7986), (2662, 7944), (2904, 7282), (3641, 5808), (3972, 5324), (3993, 5296)]