20212901408

素因数分解:

$2^5\times 7^2\times {\mathrm{127}}^1\times {\mathrm{101503}}^1$

素因数の和:101654

約数の個数: 72

約数和(自身を含む): 46656110592

約数和(自身を除く): 26443209184

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 98, 112, 127, 196, 224, 254, 392, 508, 784, 889, 1016, 1568, 1778, 2032, 3556, 4064, 6223, 7112, 12446, 14224, 24892, 28448, 49784, 99568, 101503, 199136, 203006, 406012, 710521, 812024, 1421042, 1624048, 2842084, 3248096, 4973647, 5684168, 9947294, 11368336, 12890881, 19894588, 22736672, 25781762, 39789176, 51563524, 79578352, 90236167, 103127048, 159156704, 180472334, 206254096, 360944668, 412508192, 631653169, 721889336, 1263306338, 1443778672, 2526612676, 2887557344, 5053225352, 10106450704, 20212901408]

約数ペア:

[(1, 20212901408), (2, 10106450704), (4, 5053225352), (7, 2887557344), (8, 2526612676), (14, 1443778672), (16, 1263306338), (28, 721889336), (32, 631653169), (49, 412508192), (56, 360944668), (98, 206254096), (112, 180472334), (127, 159156704), (196, 103127048), (224, 90236167), (254, 79578352), (392, 51563524), (508, 39789176), (784, 25781762), (889, 22736672), (1016, 19894588), (1568, 12890881), (1778, 11368336), (2032, 9947294), (3556, 5684168), (4064, 4973647), (6223, 3248096), (7112, 2842084), (12446, 1624048), (14224, 1421042), (24892, 812024), (28448, 710521), (49784, 406012), (99568, 203006), (101503, 199136)]