21471252

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:197

約数の個数: 96

約数和(自身を含む): 58060800

約数和(自身を除く): 36589548

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 29, 33, 44, 58, 66, 71, 79, 87, 116, 132, 142, 158, 174, 213, 237, 284, 316, 319, 348, 426, 474, 638, 781, 852, 869, 948, 957, 1276, 1562, 1738, 1914, 2059, 2291, 2343, 2607, 3124, 3476, 3828, 4118, 4582, 4686, 5214, 5609, 6177, 6873, 8236, 9164, 9372, 10428, 11218, 12354, 13746, 16827, 22436, 22649, 24708, 25201, 27492, 33654, 45298, 50402, 61699, 67308, 67947, 75603, 90596, 100804, 123398, 135894, 151206, 162661, 185097, 246796, 271788, 302412, 325322, 370194, 487983, 650644, 740388, 975966, 1789271, 1951932, 3578542, 5367813, 7157084, 10735626, 21471252]

約数ペア:

[(1, 21471252), (2, 10735626), (3, 7157084), (4, 5367813), (6, 3578542), (11, 1951932), (12, 1789271), (22, 975966), (29, 740388), (33, 650644), (44, 487983), (58, 370194), (66, 325322), (71, 302412), (79, 271788), (87, 246796), (116, 185097), (132, 162661), (142, 151206), (158, 135894), (174, 123398), (213, 100804), (237, 90596), (284, 75603), (316, 67947), (319, 67308), (348, 61699), (426, 50402), (474, 45298), (638, 33654), (781, 27492), (852, 25201), (869, 24708), (948, 22649), (957, 22436), (1276, 16827), (1562, 13746), (1738, 12354), (1914, 11218), (2059, 10428), (2291, 9372), (2343, 9164), (2607, 8236), (3124, 6873), (3476, 6177), (3828, 5609), (4118, 5214), (4582, 4686)]