21474009

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1$

素因数の和:214

約数の個数: 48

約数和(自身を含む): 35380800

約数和(自身を除く): 13906791

約数列:

[1, 3, 9, 17, 19, 51, 57, 83, 89, 153, 171, 249, 267, 323, 747, 801, 969, 1411, 1513, 1577, 1691, 2907, 4233, 4539, 4731, 5073, 7387, 12699, 13617, 14193, 15219, 22161, 26809, 28747, 66483, 80427, 86241, 125579, 140353, 241281, 258723, 376737, 421059, 1130211, 1263177, 2386001, 7158003, 21474009]

約数ペア:

[(1, 21474009), (3, 7158003), (9, 2386001), (17, 1263177), (19, 1130211), (51, 421059), (57, 376737), (83, 258723), (89, 241281), (153, 140353), (171, 125579), (249, 86241), (267, 80427), (323, 66483), (747, 28747), (801, 26809), (969, 22161), (1411, 15219), (1513, 14193), (1577, 13617), (1691, 12699), (2907, 7387), (4233, 5073), (4539, 4731)]