18159944

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{199}}^1$

素因数の和:294

約数の個数: 64

約数和(自身を含む): 40176000

約数和(自身を除く): 22016056

約数列:

[1, 2, 4, 8, 11, 17, 22, 34, 44, 61, 68, 88, 122, 136, 187, 199, 244, 374, 398, 488, 671, 748, 796, 1037, 1342, 1496, 1592, 2074, 2189, 2684, 3383, 4148, 4378, 5368, 6766, 8296, 8756, 11407, 12139, 13532, 17512, 22814, 24278, 27064, 37213, 45628, 48556, 74426, 91256, 97112, 133529, 148852, 206363, 267058, 297704, 412726, 534116, 825452, 1068232, 1650904, 2269993, 4539986, 9079972, 18159944]

約数ペア:

[(1, 18159944), (2, 9079972), (4, 4539986), (8, 2269993), (11, 1650904), (17, 1068232), (22, 825452), (34, 534116), (44, 412726), (61, 297704), (68, 267058), (88, 206363), (122, 148852), (136, 133529), (187, 97112), (199, 91256), (244, 74426), (374, 48556), (398, 45628), (488, 37213), (671, 27064), (748, 24278), (796, 22814), (1037, 17512), (1342, 13532), (1496, 12139), (1592, 11407), (2074, 8756), (2189, 8296), (2684, 6766), (3383, 5368), (4148, 4378)]