19992252

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{29}}^2\times {\mathrm{283}}^1$

素因数の和:355

約数の個数: 72

約数和(自身を含む): 55409536

約数和(自身を除く): 35417284

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 29, 42, 58, 84, 87, 116, 174, 203, 283, 348, 406, 566, 609, 812, 841, 849, 1132, 1218, 1682, 1698, 1981, 2436, 2523, 3364, 3396, 3962, 5046, 5887, 5943, 7924, 8207, 10092, 11774, 11886, 16414, 17661, 23548, 23772, 24621, 32828, 35322, 49242, 57449, 70644, 98484, 114898, 172347, 229796, 238003, 344694, 476006, 689388, 714009, 952012, 1428018, 1666021, 2856036, 3332042, 4998063, 6664084, 9996126, 19992252]

約数ペア:

[(1, 19992252), (2, 9996126), (3, 6664084), (4, 4998063), (6, 3332042), (7, 2856036), (12, 1666021), (14, 1428018), (21, 952012), (28, 714009), (29, 689388), (42, 476006), (58, 344694), (84, 238003), (87, 229796), (116, 172347), (174, 114898), (203, 98484), (283, 70644), (348, 57449), (406, 49242), (566, 35322), (609, 32828), (812, 24621), (841, 23772), (849, 23548), (1132, 17661), (1218, 16414), (1682, 11886), (1698, 11774), (1981, 10092), (2436, 8207), (2523, 7924), (3364, 5943), (3396, 5887), (3962, 5046)]