21221824

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1109}}^1$

素因数の和:1157

約数の個数: 56

約数和(自身を含む): 47365920

約数和(自身を除く): 26144096

約数列:

[1, 2, 4, 8, 13, 16, 23, 26, 32, 46, 52, 64, 92, 104, 184, 208, 299, 368, 416, 598, 736, 832, 1109, 1196, 1472, 2218, 2392, 4436, 4784, 8872, 9568, 14417, 17744, 19136, 25507, 28834, 35488, 51014, 57668, 70976, 102028, 115336, 204056, 230672, 331591, 408112, 461344, 663182, 816224, 922688, 1326364, 1632448, 2652728, 5305456, 10610912, 21221824]

約数ペア:

[(1, 21221824), (2, 10610912), (4, 5305456), (8, 2652728), (13, 1632448), (16, 1326364), (23, 922688), (26, 816224), (32, 663182), (46, 461344), (52, 408112), (64, 331591), (92, 230672), (104, 204056), (184, 115336), (208, 102028), (299, 70976), (368, 57668), (416, 51014), (598, 35488), (736, 28834), (832, 25507), (1109, 19136), (1196, 17744), (1472, 14417), (2218, 9568), (2392, 8872), (4436, 4784)]