19906432

素因数分解:

$2^7\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1709}}^1$

素因数の和:1743

約数の個数: 64

約数和(自身を含む): 48837600

約数和(自身を除く): 28931168

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 64, 91, 104, 112, 128, 182, 208, 224, 364, 416, 448, 728, 832, 896, 1456, 1664, 1709, 2912, 3418, 5824, 6836, 11648, 11963, 13672, 22217, 23926, 27344, 44434, 47852, 54688, 88868, 95704, 109376, 155519, 177736, 191408, 218752, 311038, 355472, 382816, 622076, 710944, 765632, 1244152, 1421888, 1531264, 2488304, 2843776, 4976608, 9953216, 19906432]

約数ペア:

[(1, 19906432), (2, 9953216), (4, 4976608), (7, 2843776), (8, 2488304), (13, 1531264), (14, 1421888), (16, 1244152), (26, 765632), (28, 710944), (32, 622076), (52, 382816), (56, 355472), (64, 311038), (91, 218752), (104, 191408), (112, 177736), (128, 155519), (182, 109376), (208, 95704), (224, 88868), (364, 54688), (416, 47852), (448, 44434), (728, 27344), (832, 23926), (896, 22217), (1456, 13672), (1664, 11963), (1709, 11648), (2912, 6836), (3418, 5824)]