217272484

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{479}}^1$

素因数の和:581

約数の個数: 72

約数和(自身を含む): 457470720

約数和(自身を除く): 240198236

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 61, 122, 143, 169, 244, 286, 338, 479, 572, 671, 676, 793, 958, 1342, 1586, 1859, 1916, 2684, 3172, 3718, 5269, 6227, 7436, 8723, 10309, 10538, 12454, 17446, 20618, 21076, 24908, 29219, 34892, 41236, 58438, 68497, 80951, 113399, 116876, 136994, 161902, 226798, 273988, 321409, 323804, 379847, 453596, 642818, 759694, 890461, 1285636, 1519388, 1780922, 3561844, 4178317, 4938011, 8356634, 9876022, 16713268, 19752044, 54318121, 108636242, 217272484]

約数ペア:

[(1, 217272484), (2, 108636242), (4, 54318121), (11, 19752044), (13, 16713268), (22, 9876022), (26, 8356634), (44, 4938011), (52, 4178317), (61, 3561844), (122, 1780922), (143, 1519388), (169, 1285636), (244, 890461), (286, 759694), (338, 642818), (479, 453596), (572, 379847), (671, 323804), (676, 321409), (793, 273988), (958, 226798), (1342, 161902), (1586, 136994), (1859, 116876), (1916, 113399), (2684, 80951), (3172, 68497), (3718, 58438), (5269, 41236), (6227, 34892), (7436, 29219), (8723, 24908), (10309, 21076), (10538, 20618), (12454, 17446)]