51021705

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{571}}^1$

素因数の和:646

約数の個数: 64

約数和(自身を含む): 100159488

約数和(自身を除く): 49137783

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 37, 69, 105, 111, 115, 161, 185, 259, 345, 483, 555, 571, 777, 805, 851, 1295, 1713, 2415, 2553, 2855, 3885, 3997, 4255, 5957, 8565, 11991, 12765, 13133, 17871, 19985, 21127, 29785, 39399, 59955, 63381, 65665, 89355, 91931, 105635, 147889, 196995, 275793, 316905, 443667, 459655, 485921, 739445, 1378965, 1457763, 2218335, 2429605, 3401447, 7288815, 10204341, 17007235, 51021705]

約数ペア:

[(1, 51021705), (3, 17007235), (5, 10204341), (7, 7288815), (15, 3401447), (21, 2429605), (23, 2218335), (35, 1457763), (37, 1378965), (69, 739445), (105, 485921), (111, 459655), (115, 443667), (161, 316905), (185, 275793), (259, 196995), (345, 147889), (483, 105635), (555, 91931), (571, 89355), (777, 65665), (805, 63381), (851, 59955), (1295, 39399), (1713, 29785), (2415, 21127), (2553, 19985), (2855, 17871), (3885, 13133), (3997, 12765), (4255, 11991), (5957, 8565)]