21053203432

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{223}}^1\times {\mathrm{347}}^1\times {\mathrm{479}}^1$

素因数の和:1126

約数の個数: 64

約数和(自身を含む): 40410316800

約数和(自身を除く): 19357113368

約数列:

[1, 2, 4, 8, 71, 142, 223, 284, 347, 446, 479, 568, 694, 892, 958, 1388, 1784, 1916, 2776, 3832, 15833, 24637, 31666, 34009, 49274, 63332, 68018, 77381, 98548, 106817, 126664, 136036, 154762, 166213, 197096, 213634, 272072, 309524, 332426, 427268, 619048, 664852, 854536, 1329704, 5494051, 7584007, 10988102, 11801123, 15168014, 21976204, 23602246, 30336028, 37065499, 43952408, 47204492, 60672056, 74130998, 94408984, 148261996, 296523992, 2631650429, 5263300858, 10526601716, 21053203432]

約数ペア:

[(1, 21053203432), (2, 10526601716), (4, 5263300858), (8, 2631650429), (71, 296523992), (142, 148261996), (223, 94408984), (284, 74130998), (347, 60672056), (446, 47204492), (479, 43952408), (568, 37065499), (694, 30336028), (892, 23602246), (958, 21976204), (1388, 15168014), (1784, 11801123), (1916, 10988102), (2776, 7584007), (3832, 5494051), (15833, 1329704), (24637, 854536), (31666, 664852), (34009, 619048), (49274, 427268), (63332, 332426), (68018, 309524), (77381, 272072), (98548, 213634), (106817, 197096), (126664, 166213), (136036, 154762)]