21403386

素因数分解:

$2^1\times 3^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{907}}^1$

素因数の和:960

約数の個数: 64

約数和(自身を含む): 52300800

約数和(自身を除く): 30897414

約数列:

[1, 2, 3, 6, 9, 18, 19, 23, 27, 38, 46, 54, 57, 69, 114, 138, 171, 207, 342, 414, 437, 513, 621, 874, 907, 1026, 1242, 1311, 1814, 2622, 2721, 3933, 5442, 7866, 8163, 11799, 16326, 17233, 20861, 23598, 24489, 34466, 41722, 48978, 51699, 62583, 103398, 125166, 155097, 187749, 310194, 375498, 396359, 465291, 563247, 792718, 930582, 1126494, 1189077, 2378154, 3567231, 7134462, 10701693, 21403386]

約数ペア:

[(1, 21403386), (2, 10701693), (3, 7134462), (6, 3567231), (9, 2378154), (18, 1189077), (19, 1126494), (23, 930582), (27, 792718), (38, 563247), (46, 465291), (54, 396359), (57, 375498), (69, 310194), (114, 187749), (138, 155097), (171, 125166), (207, 103398), (342, 62583), (414, 51699), (437, 48978), (513, 41722), (621, 34466), (874, 24489), (907, 23598), (1026, 20861), (1242, 17233), (1311, 16326), (1814, 11799), (2622, 8163), (2721, 7866), (3933, 5442)]