21804224

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{359}}^1$

素因数の和:457

約数の個数: 56

約数和(自身を含む): 47365920

約数和(自身を除く): 25561696

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 73, 104, 146, 208, 292, 359, 416, 584, 718, 832, 949, 1168, 1436, 1898, 2336, 2872, 3796, 4667, 4672, 5744, 7592, 9334, 11488, 15184, 18668, 22976, 26207, 30368, 37336, 52414, 60736, 74672, 104828, 149344, 209656, 298688, 340691, 419312, 681382, 838624, 1362764, 1677248, 2725528, 5451056, 10902112, 21804224]

約数ペア:

[(1, 21804224), (2, 10902112), (4, 5451056), (8, 2725528), (13, 1677248), (16, 1362764), (26, 838624), (32, 681382), (52, 419312), (64, 340691), (73, 298688), (104, 209656), (146, 149344), (208, 104828), (292, 74672), (359, 60736), (416, 52414), (584, 37336), (718, 30368), (832, 26207), (949, 22976), (1168, 18668), (1436, 15184), (1898, 11488), (2336, 9334), (2872, 7592), (3796, 5744), (4667, 4672)]