21000456822

素因数分解:

$2^1\times 3^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1\times {\mathrm{587}}^1\times {\mathrm{613}}^1$

素因数の和:1413

約数の個数: 64

約数和(自身を含む): 43046567424

約数和(自身を除く): 22046110602

約数列:

[1, 2, 3, 6, 71, 137, 142, 213, 274, 411, 426, 587, 613, 822, 1174, 1226, 1761, 1839, 3522, 3678, 9727, 19454, 29181, 41677, 43523, 58362, 80419, 83354, 83981, 87046, 125031, 130569, 160838, 167962, 241257, 250062, 251943, 261138, 359831, 482514, 503886, 719662, 1079493, 2158986, 5709749, 5962651, 11419498, 11925302, 17129247, 17887953, 25548001, 34258494, 35775906, 49296847, 51096002, 76644003, 98593694, 147890541, 153288006, 295781082, 3500076137, 7000152274, 10500228411, 21000456822]

約数ペア:

[(1, 21000456822), (2, 10500228411), (3, 7000152274), (6, 3500076137), (71, 295781082), (137, 153288006), (142, 147890541), (213, 98593694), (274, 76644003), (411, 51096002), (426, 49296847), (587, 35775906), (613, 34258494), (822, 25548001), (1174, 17887953), (1226, 17129247), (1761, 11925302), (1839, 11419498), (3522, 5962651), (3678, 5709749), (9727, 2158986), (19454, 1079493), (29181, 719662), (41677, 503886), (43523, 482514), (58362, 359831), (80419, 261138), (83354, 251943), (83981, 250062), (87046, 241257), (125031, 167962), (130569, 160838)]