19013956

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{157}}^1$

素因数の和:328

約数の個数: 48

約数和(自身を含む): 38462256

約数和(自身を除く): 19448300

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 137, 157, 221, 274, 314, 442, 548, 628, 884, 1781, 2041, 2329, 2669, 3562, 4082, 4658, 5338, 7124, 8164, 9316, 10676, 21509, 30277, 34697, 43018, 60554, 69394, 86036, 121108, 138788, 279617, 365653, 559234, 731306, 1118468, 1462612, 4753489, 9506978, 19013956]

約数ペア:

[(1, 19013956), (2, 9506978), (4, 4753489), (13, 1462612), (17, 1118468), (26, 731306), (34, 559234), (52, 365653), (68, 279617), (137, 138788), (157, 121108), (221, 86036), (274, 69394), (314, 60554), (442, 43018), (548, 34697), (628, 30277), (884, 21509), (1781, 10676), (2041, 9316), (2329, 8164), (2669, 7124), (3562, 5338), (4082, 4658)]