18283772

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:127

約数の個数: 72

約数和(自身を含む): 38552976

約数和(自身を除く): 20269204

約数列:

[1, 2, 4, 13, 17, 26, 34, 37, 43, 52, 68, 74, 86, 148, 169, 172, 221, 338, 442, 481, 559, 629, 676, 731, 884, 962, 1118, 1258, 1462, 1591, 1924, 2236, 2516, 2873, 2924, 3182, 5746, 6253, 6364, 7267, 8177, 9503, 11492, 12506, 14534, 16354, 19006, 20683, 25012, 27047, 29068, 32708, 38012, 41366, 54094, 82732, 106301, 108188, 123539, 212602, 247078, 268879, 351611, 425204, 494156, 537758, 703222, 1075516, 1406444, 4570943, 9141886, 18283772]

約数ペア:

[(1, 18283772), (2, 9141886), (4, 4570943), (13, 1406444), (17, 1075516), (26, 703222), (34, 537758), (37, 494156), (43, 425204), (52, 351611), (68, 268879), (74, 247078), (86, 212602), (148, 123539), (169, 108188), (172, 106301), (221, 82732), (338, 54094), (442, 41366), (481, 38012), (559, 32708), (629, 29068), (676, 27047), (731, 25012), (884, 20683), (962, 19006), (1118, 16354), (1258, 14534), (1462, 12506), (1591, 11492), (1924, 9503), (2236, 8177), (2516, 7267), (2873, 6364), (2924, 6253), (3182, 5746)]