21019008

素因数分解:

$2^7\times 3^1\times {\mathrm{127}}^1\times {\mathrm{431}}^1$

素因数の和:575

約数の個数: 64

約数和(自身を含む): 56401920

約数和(自身を除く): 35382912

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 127, 128, 192, 254, 381, 384, 431, 508, 762, 862, 1016, 1293, 1524, 1724, 2032, 2586, 3048, 3448, 4064, 5172, 6096, 6896, 8128, 10344, 12192, 13792, 16256, 20688, 24384, 27584, 41376, 48768, 54737, 55168, 82752, 109474, 164211, 165504, 218948, 328422, 437896, 656844, 875792, 1313688, 1751584, 2627376, 3503168, 5254752, 7006336, 10509504, 21019008]

約数ペア:

[(1, 21019008), (2, 10509504), (3, 7006336), (4, 5254752), (6, 3503168), (8, 2627376), (12, 1751584), (16, 1313688), (24, 875792), (32, 656844), (48, 437896), (64, 328422), (96, 218948), (127, 165504), (128, 164211), (192, 109474), (254, 82752), (381, 55168), (384, 54737), (431, 48768), (508, 41376), (762, 27584), (862, 24384), (1016, 20688), (1293, 16256), (1524, 13792), (1724, 12192), (2032, 10344), (2586, 8128), (3048, 6896), (3448, 6096), (4064, 5172)]