19752915

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{499}}^1$

素因数の和:556

約数の個数: 64

約数和(自身を含む): 40320000

約数和(自身を除く): 20567085

約数列:

[1, 3, 5, 7, 13, 15, 21, 29, 35, 39, 65, 87, 91, 105, 145, 195, 203, 273, 377, 435, 455, 499, 609, 1015, 1131, 1365, 1497, 1885, 2495, 2639, 3045, 3493, 5655, 6487, 7485, 7917, 10479, 13195, 14471, 17465, 19461, 32435, 39585, 43413, 45409, 52395, 72355, 97305, 101297, 136227, 188123, 217065, 227045, 303891, 506485, 564369, 681135, 940615, 1316861, 1519455, 2821845, 3950583, 6584305, 19752915]

約数ペア:

[(1, 19752915), (3, 6584305), (5, 3950583), (7, 2821845), (13, 1519455), (15, 1316861), (21, 940615), (29, 681135), (35, 564369), (39, 506485), (65, 303891), (87, 227045), (91, 217065), (105, 188123), (145, 136227), (195, 101297), (203, 97305), (273, 72355), (377, 52395), (435, 45409), (455, 43413), (499, 39585), (609, 32435), (1015, 19461), (1131, 17465), (1365, 14471), (1497, 13195), (1885, 10479), (2495, 7917), (2639, 7485), (3045, 6487), (3493, 5655)]