20210535

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{911}}^1$

素因数の和:968

約数の個数: 48

約数和(自身を含む): 38413440

約数和(自身を除く): 18202905

約数列:

[1, 3, 5, 9, 15, 17, 29, 45, 51, 85, 87, 145, 153, 255, 261, 435, 493, 765, 911, 1305, 1479, 2465, 2733, 4437, 4555, 7395, 8199, 13665, 15487, 22185, 26419, 40995, 46461, 77435, 79257, 132095, 139383, 232305, 237771, 396285, 449123, 696915, 1188855, 1347369, 2245615, 4042107, 6736845, 20210535]

約数ペア:

[(1, 20210535), (3, 6736845), (5, 4042107), (9, 2245615), (15, 1347369), (17, 1188855), (29, 696915), (45, 449123), (51, 396285), (85, 237771), (87, 232305), (145, 139383), (153, 132095), (255, 79257), (261, 77435), (435, 46461), (493, 40995), (765, 26419), (911, 22185), (1305, 15487), (1479, 13665), (2465, 8199), (2733, 7395), (4437, 4555)]