18808878

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{317}}^1$

素因数の和:393

約数の個数: 64

約数和(自身を含む): 43960320

約数和(自身を除く): 25151442

約数列:

[1, 2, 3, 6, 11, 22, 29, 31, 33, 58, 62, 66, 87, 93, 174, 186, 317, 319, 341, 634, 638, 682, 899, 951, 957, 1023, 1798, 1902, 1914, 2046, 2697, 3487, 5394, 6974, 9193, 9827, 9889, 10461, 18386, 19654, 19778, 20922, 27579, 29481, 29667, 55158, 58962, 59334, 101123, 108097, 202246, 216194, 284983, 303369, 324291, 569966, 606738, 648582, 854949, 1709898, 3134813, 6269626, 9404439, 18808878]

約数ペア:

[(1, 18808878), (2, 9404439), (3, 6269626), (6, 3134813), (11, 1709898), (22, 854949), (29, 648582), (31, 606738), (33, 569966), (58, 324291), (62, 303369), (66, 284983), (87, 216194), (93, 202246), (174, 108097), (186, 101123), (317, 59334), (319, 58962), (341, 55158), (634, 29667), (638, 29481), (682, 27579), (899, 20922), (951, 19778), (957, 19654), (1023, 18386), (1798, 10461), (1902, 9889), (1914, 9827), (2046, 9193), (2697, 6974), (3487, 5394)]