19651218

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1$

素因数の和:227

約数の個数: 64

約数和(自身を含む): 44126208

約数和(自身を除く): 24474990

約数列:

[1, 2, 3, 6, 17, 34, 37, 41, 51, 74, 82, 102, 111, 123, 127, 222, 246, 254, 381, 629, 697, 762, 1258, 1394, 1517, 1887, 2091, 2159, 3034, 3774, 4182, 4318, 4551, 4699, 5207, 6477, 9102, 9398, 10414, 12954, 14097, 15621, 25789, 28194, 31242, 51578, 77367, 79883, 88519, 154734, 159766, 177038, 192659, 239649, 265557, 385318, 479298, 531114, 577977, 1155954, 3275203, 6550406, 9825609, 19651218]

約数ペア:

[(1, 19651218), (2, 9825609), (3, 6550406), (6, 3275203), (17, 1155954), (34, 577977), (37, 531114), (41, 479298), (51, 385318), (74, 265557), (82, 239649), (102, 192659), (111, 177038), (123, 159766), (127, 154734), (222, 88519), (246, 79883), (254, 77367), (381, 51578), (629, 31242), (697, 28194), (762, 25789), (1258, 15621), (1394, 14097), (1517, 12954), (1887, 10414), (2091, 9398), (2159, 9102), (3034, 6477), (3774, 5207), (4182, 4699), (4318, 4551)]