19387264

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{191}}^1$

素因数の和:279

約数の個数: 64

約数和(自身を含む): 42497280

約数和(自身を除く): 23110016

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 61, 64, 104, 122, 128, 191, 208, 244, 382, 416, 488, 764, 793, 832, 976, 1528, 1586, 1664, 1952, 2483, 3056, 3172, 3904, 4966, 6112, 6344, 7808, 9932, 11651, 12224, 12688, 19864, 23302, 24448, 25376, 39728, 46604, 50752, 79456, 93208, 101504, 151463, 158912, 186416, 302926, 317824, 372832, 605852, 745664, 1211704, 1491328, 2423408, 4846816, 9693632, 19387264]

約数ペア:

[(1, 19387264), (2, 9693632), (4, 4846816), (8, 2423408), (13, 1491328), (16, 1211704), (26, 745664), (32, 605852), (52, 372832), (61, 317824), (64, 302926), (104, 186416), (122, 158912), (128, 151463), (191, 101504), (208, 93208), (244, 79456), (382, 50752), (416, 46604), (488, 39728), (764, 25376), (793, 24448), (832, 23302), (976, 19864), (1528, 12688), (1586, 12224), (1664, 11651), (1952, 9932), (2483, 7808), (3056, 6344), (3172, 6112), (3904, 4966)]