19660653

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{151}}^1$

素因数の和:234

約数の個数: 48

約数和(自身を含む): 32438016

約数和(自身を除く): 12777363

約数列:

[1, 3, 9, 17, 23, 37, 51, 69, 111, 151, 153, 207, 333, 391, 453, 629, 851, 1173, 1359, 1887, 2553, 2567, 3473, 3519, 5587, 5661, 7659, 7701, 10419, 14467, 16761, 23103, 31257, 43401, 50283, 59041, 94979, 128501, 130203, 177123, 284937, 385503, 531369, 854811, 1156509, 2184517, 6553551, 19660653]

約数ペア:

[(1, 19660653), (3, 6553551), (9, 2184517), (17, 1156509), (23, 854811), (37, 531369), (51, 385503), (69, 284937), (111, 177123), (151, 130203), (153, 128501), (207, 94979), (333, 59041), (391, 50283), (453, 43401), (629, 31257), (851, 23103), (1173, 16761), (1359, 14467), (1887, 10419), (2553, 7701), (2567, 7659), (3473, 5661), (3519, 5587)]