19654516

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{263}}^1$

素因数の和:448

約数の個数: 48

約数和(自身を含む): 42045696

約数和(自身を除く): 22391180

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 157, 238, 263, 314, 476, 526, 628, 1052, 1099, 1841, 2198, 2669, 3682, 4396, 4471, 5338, 7364, 8942, 10676, 17884, 18683, 31297, 37366, 41291, 62594, 74732, 82582, 125188, 165164, 289037, 578074, 701947, 1156148, 1403894, 2807788, 4913629, 9827258, 19654516]

約数ペア:

[(1, 19654516), (2, 9827258), (4, 4913629), (7, 2807788), (14, 1403894), (17, 1156148), (28, 701947), (34, 578074), (68, 289037), (119, 165164), (157, 125188), (238, 82582), (263, 74732), (314, 62594), (476, 41291), (526, 37366), (628, 31297), (1052, 18683), (1099, 17884), (1841, 10676), (2198, 8942), (2669, 7364), (3682, 5338), (4396, 4471)]