21204216

素因数分解:

$2^3\times 3^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{653}}^1$

素因数の和:717

約数の個数: 96

約数和(自身を含む): 64275120

約数和(自身を除く): 43070904

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 18, 22, 24, 33, 36, 41, 44, 66, 72, 82, 88, 99, 123, 132, 164, 198, 246, 264, 328, 369, 396, 451, 492, 653, 738, 792, 902, 984, 1306, 1353, 1476, 1804, 1959, 2612, 2706, 2952, 3608, 3918, 4059, 5224, 5412, 5877, 7183, 7836, 8118, 10824, 11754, 14366, 15672, 16236, 21549, 23508, 26773, 28732, 32472, 43098, 47016, 53546, 57464, 64647, 80319, 86196, 107092, 129294, 160638, 172392, 214184, 240957, 258588, 294503, 321276, 481914, 517176, 589006, 642552, 883509, 963828, 1178012, 1767018, 1927656, 2356024, 2650527, 3534036, 5301054, 7068072, 10602108, 21204216]

約数ペア:

[(1, 21204216), (2, 10602108), (3, 7068072), (4, 5301054), (6, 3534036), (8, 2650527), (9, 2356024), (11, 1927656), (12, 1767018), (18, 1178012), (22, 963828), (24, 883509), (33, 642552), (36, 589006), (41, 517176), (44, 481914), (66, 321276), (72, 294503), (82, 258588), (88, 240957), (99, 214184), (123, 172392), (132, 160638), (164, 129294), (198, 107092), (246, 86196), (264, 80319), (328, 64647), (369, 57464), (396, 53546), (451, 47016), (492, 43098), (653, 32472), (738, 28732), (792, 26773), (902, 23508), (984, 21549), (1306, 16236), (1353, 15672), (1476, 14366), (1804, 11754), (1959, 10824), (2612, 8118), (2706, 7836), (2952, 7183), (3608, 5877), (3918, 5412), (4059, 5224)]