21511656

素因数分解:

$2^3\times 3^4\times {\mathrm{89}}^1\times {\mathrm{373}}^1$

素因数の和:480

約数の個数: 80

約数和(自身を含む): 61092900

約数和(自身を除く): 39581244

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 89, 108, 162, 178, 216, 267, 324, 356, 373, 534, 648, 712, 746, 801, 1068, 1119, 1492, 1602, 2136, 2238, 2403, 2984, 3204, 3357, 4476, 4806, 6408, 6714, 7209, 8952, 9612, 10071, 13428, 14418, 19224, 20142, 26856, 28836, 30213, 33197, 40284, 57672, 60426, 66394, 80568, 99591, 120852, 132788, 199182, 241704, 265576, 298773, 398364, 597546, 796728, 896319, 1195092, 1792638, 2390184, 2688957, 3585276, 5377914, 7170552, 10755828, 21511656]

約数ペア:

[(1, 21511656), (2, 10755828), (3, 7170552), (4, 5377914), (6, 3585276), (8, 2688957), (9, 2390184), (12, 1792638), (18, 1195092), (24, 896319), (27, 796728), (36, 597546), (54, 398364), (72, 298773), (81, 265576), (89, 241704), (108, 199182), (162, 132788), (178, 120852), (216, 99591), (267, 80568), (324, 66394), (356, 60426), (373, 57672), (534, 40284), (648, 33197), (712, 30213), (746, 28836), (801, 26856), (1068, 20142), (1119, 19224), (1492, 14418), (1602, 13428), (2136, 10071), (2238, 9612), (2403, 8952), (2984, 7209), (3204, 6714), (3357, 6408), (4476, 4806)]