21122192

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{163}}^1$

素因数の和:280

約数の個数: 80

約数和(自身を含む): 51246720

約数和(自身を除く): 30124528

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 89, 91, 104, 112, 163, 178, 182, 208, 326, 356, 364, 623, 652, 712, 728, 1141, 1157, 1246, 1304, 1424, 1456, 2119, 2282, 2314, 2492, 2608, 4238, 4564, 4628, 4984, 8099, 8476, 9128, 9256, 9968, 14507, 14833, 16198, 16952, 18256, 18512, 29014, 29666, 32396, 33904, 58028, 59332, 64792, 101549, 116056, 118664, 129584, 188591, 203098, 232112, 237328, 377182, 406196, 754364, 812392, 1320137, 1508728, 1624784, 2640274, 3017456, 5280548, 10561096, 21122192]

約数ペア:

[(1, 21122192), (2, 10561096), (4, 5280548), (7, 3017456), (8, 2640274), (13, 1624784), (14, 1508728), (16, 1320137), (26, 812392), (28, 754364), (52, 406196), (56, 377182), (89, 237328), (91, 232112), (104, 203098), (112, 188591), (163, 129584), (178, 118664), (182, 116056), (208, 101549), (326, 64792), (356, 59332), (364, 58028), (623, 33904), (652, 32396), (712, 29666), (728, 29014), (1141, 18512), (1157, 18256), (1246, 16952), (1304, 16198), (1424, 14833), (1456, 14507), (2119, 9968), (2282, 9256), (2314, 9128), (2492, 8476), (2608, 8099), (4238, 4984), (4564, 4628)]