18911464

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{271}}^1$

素因数の和:362

約数の個数: 64

約数和(自身を含む): 42497280

約数和(自身を除く): 23585816

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 61, 88, 104, 122, 143, 244, 271, 286, 488, 542, 572, 671, 793, 1084, 1144, 1342, 1586, 2168, 2684, 2981, 3172, 3523, 5368, 5962, 6344, 7046, 8723, 11924, 14092, 16531, 17446, 23848, 28184, 33062, 34892, 38753, 66124, 69784, 77506, 132248, 155012, 181841, 214903, 310024, 363682, 429806, 727364, 859612, 1454728, 1719224, 2363933, 4727866, 9455732, 18911464]

約数ペア:

[(1, 18911464), (2, 9455732), (4, 4727866), (8, 2363933), (11, 1719224), (13, 1454728), (22, 859612), (26, 727364), (44, 429806), (52, 363682), (61, 310024), (88, 214903), (104, 181841), (122, 155012), (143, 132248), (244, 77506), (271, 69784), (286, 66124), (488, 38753), (542, 34892), (572, 33062), (671, 28184), (793, 23848), (1084, 17446), (1144, 16531), (1342, 14092), (1586, 11924), (2168, 8723), (2684, 7046), (2981, 6344), (3172, 5962), (3523, 5368)]