21246444

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{433}}^1$

素因数の和:519

約数の個数: 72

約数和(自身を含む): 56871360

約数和(自身を除く): 35624916

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 47, 58, 87, 94, 116, 141, 174, 188, 261, 282, 348, 423, 433, 522, 564, 846, 866, 1044, 1299, 1363, 1692, 1732, 2598, 2726, 3897, 4089, 5196, 5452, 7794, 8178, 12267, 12557, 15588, 16356, 20351, 24534, 25114, 37671, 40702, 49068, 50228, 61053, 75342, 81404, 113013, 122106, 150684, 183159, 226026, 244212, 366318, 452052, 590179, 732636, 1180358, 1770537, 2360716, 3541074, 5311611, 7082148, 10623222, 21246444]

約数ペア:

[(1, 21246444), (2, 10623222), (3, 7082148), (4, 5311611), (6, 3541074), (9, 2360716), (12, 1770537), (18, 1180358), (29, 732636), (36, 590179), (47, 452052), (58, 366318), (87, 244212), (94, 226026), (116, 183159), (141, 150684), (174, 122106), (188, 113013), (261, 81404), (282, 75342), (348, 61053), (423, 50228), (433, 49068), (522, 40702), (564, 37671), (846, 25114), (866, 24534), (1044, 20351), (1299, 16356), (1363, 15588), (1692, 12557), (1732, 12267), (2598, 8178), (2726, 7794), (3897, 5452), (4089, 5196)]