2191917

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:98

約数の個数: 48

約数和(自身を含む): 3881472

約数和(自身を除く): 1689555

約数列:

[1, 3, 7, 13, 21, 31, 37, 39, 49, 91, 93, 111, 147, 217, 259, 273, 403, 481, 637, 651, 777, 1147, 1209, 1443, 1519, 1813, 1911, 2821, 3367, 3441, 4557, 5439, 8029, 8463, 10101, 14911, 19747, 23569, 24087, 44733, 56203, 59241, 70707, 104377, 168609, 313131, 730639, 2191917]

約数ペア:

[(1, 2191917), (3, 730639), (7, 313131), (13, 168609), (21, 104377), (31, 70707), (37, 59241), (39, 56203), (49, 44733), (91, 24087), (93, 23569), (111, 19747), (147, 14911), (217, 10101), (259, 8463), (273, 8029), (403, 5439), (481, 4557), (637, 3441), (651, 3367), (777, 2821), (1147, 1911), (1209, 1813), (1443, 1519)]