21992472

素因数分解:

$2^3\times 3^8\times {\mathrm{419}}^1$

素因数の和:449

約数の個数: 72

約数和(自身を含む): 61998300

約数和(自身を除く): 40005828

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 243, 324, 419, 486, 648, 729, 838, 972, 1257, 1458, 1676, 1944, 2187, 2514, 2916, 3352, 3771, 4374, 5028, 5832, 6561, 7542, 8748, 10056, 11313, 13122, 15084, 17496, 22626, 26244, 30168, 33939, 45252, 52488, 67878, 90504, 101817, 135756, 203634, 271512, 305451, 407268, 610902, 814536, 916353, 1221804, 1832706, 2443608, 2749059, 3665412, 5498118, 7330824, 10996236, 21992472]

約数ペア:

[(1, 21992472), (2, 10996236), (3, 7330824), (4, 5498118), (6, 3665412), (8, 2749059), (9, 2443608), (12, 1832706), (18, 1221804), (24, 916353), (27, 814536), (36, 610902), (54, 407268), (72, 305451), (81, 271512), (108, 203634), (162, 135756), (216, 101817), (243, 90504), (324, 67878), (419, 52488), (486, 45252), (648, 33939), (729, 30168), (838, 26244), (972, 22626), (1257, 17496), (1458, 15084), (1676, 13122), (1944, 11313), (2187, 10056), (2514, 8748), (2916, 7542), (3352, 6561), (3771, 5832), (4374, 5028)]