21621756

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{263}}^1$

素因数の和:331

約数の個数: 96

約数和(自身を含む): 59609088

約数和(自身を除く): 37987332

約数列:

[1, 2, 3, 4, 6, 12, 13, 17, 26, 31, 34, 39, 51, 52, 62, 68, 78, 93, 102, 124, 156, 186, 204, 221, 263, 372, 403, 442, 526, 527, 663, 789, 806, 884, 1052, 1054, 1209, 1326, 1578, 1581, 1612, 2108, 2418, 2652, 3156, 3162, 3419, 4471, 4836, 6324, 6838, 6851, 8153, 8942, 10257, 13413, 13676, 13702, 16306, 17884, 20514, 20553, 24459, 26826, 27404, 32612, 41028, 41106, 48918, 53652, 58123, 82212, 97836, 105989, 116246, 138601, 174369, 211978, 232492, 277202, 317967, 348738, 415803, 423956, 554404, 635934, 697476, 831606, 1271868, 1663212, 1801813, 3603626, 5405439, 7207252, 10810878, 21621756]

約数ペア:

[(1, 21621756), (2, 10810878), (3, 7207252), (4, 5405439), (6, 3603626), (12, 1801813), (13, 1663212), (17, 1271868), (26, 831606), (31, 697476), (34, 635934), (39, 554404), (51, 423956), (52, 415803), (62, 348738), (68, 317967), (78, 277202), (93, 232492), (102, 211978), (124, 174369), (156, 138601), (186, 116246), (204, 105989), (221, 97836), (263, 82212), (372, 58123), (403, 53652), (442, 48918), (526, 41106), (527, 41028), (663, 32612), (789, 27404), (806, 26826), (884, 24459), (1052, 20553), (1054, 20514), (1209, 17884), (1326, 16306), (1578, 13702), (1581, 13676), (1612, 13413), (2108, 10257), (2418, 8942), (2652, 8153), (3156, 6851), (3162, 6838), (3419, 6324), (4471, 4836)]