21000688132

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{239}}^1\times {\mathrm{14519}}^1$

素因数の和:14868

約数の個数: 48

約数和(自身を含む): 39517632000

約数和(自身を除く): 18516943868

約数列:

[1, 2, 4, 17, 34, 68, 89, 178, 239, 356, 478, 956, 1513, 3026, 4063, 6052, 8126, 14519, 16252, 21271, 29038, 42542, 58076, 85084, 246823, 361607, 493646, 723214, 987292, 1292191, 1446428, 2584382, 3470041, 5168764, 6940082, 13880164, 21967247, 43934494, 58990697, 87868988, 117981394, 235962788, 308833649, 617667298, 1235334596, 5250172033, 10500344066, 21000688132]

約数ペア:

[(1, 21000688132), (2, 10500344066), (4, 5250172033), (17, 1235334596), (34, 617667298), (68, 308833649), (89, 235962788), (178, 117981394), (239, 87868988), (356, 58990697), (478, 43934494), (956, 21967247), (1513, 13880164), (3026, 6940082), (4063, 5168764), (6052, 3470041), (8126, 2584382), (14519, 1446428), (16252, 1292191), (21271, 987292), (29038, 723214), (42542, 493646), (58076, 361607), (85084, 246823)]