19212990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{911}}^1$

素因数の和:977

約数の個数: 64

約数和(自身を含む): 49904640

約数和(自身を除く): 30691650

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 37, 38, 57, 74, 95, 111, 114, 185, 190, 222, 285, 370, 555, 570, 703, 911, 1110, 1406, 1822, 2109, 2733, 3515, 4218, 4555, 5466, 7030, 9110, 10545, 13665, 17309, 21090, 27330, 33707, 34618, 51927, 67414, 86545, 101121, 103854, 168535, 173090, 202242, 259635, 337070, 505605, 519270, 640433, 1011210, 1280866, 1921299, 3202165, 3842598, 6404330, 9606495, 19212990]

約数ペア:

[(1, 19212990), (2, 9606495), (3, 6404330), (5, 3842598), (6, 3202165), (10, 1921299), (15, 1280866), (19, 1011210), (30, 640433), (37, 519270), (38, 505605), (57, 337070), (74, 259635), (95, 202242), (111, 173090), (114, 168535), (185, 103854), (190, 101121), (222, 86545), (285, 67414), (370, 51927), (555, 34618), (570, 33707), (703, 27330), (911, 21090), (1110, 17309), (1406, 13665), (1822, 10545), (2109, 9110), (2733, 7030), (3515, 5466), (4218, 4555)]