21000643228

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{233}}^1\times {\mathrm{307}}^1\times {\mathrm{3863}}^1$

素因数の和:4426

約数の個数: 48

約数和(自身を含む): 38988069120

約数和(自身を除く): 17987425892

約数列:

[1, 2, 4, 19, 38, 76, 233, 307, 466, 614, 932, 1228, 3863, 4427, 5833, 7726, 8854, 11666, 15452, 17708, 23332, 71531, 73397, 143062, 146794, 286124, 293588, 900079, 1185941, 1359089, 1800158, 2371882, 2718178, 3600316, 4743764, 5436356, 17101501, 22532879, 34203002, 45065758, 68406004, 90131516, 276324253, 552648506, 1105297012, 5250160807, 10500321614, 21000643228]

約数ペア:

[(1, 21000643228), (2, 10500321614), (4, 5250160807), (19, 1105297012), (38, 552648506), (76, 276324253), (233, 90131516), (307, 68406004), (466, 45065758), (614, 34203002), (932, 22532879), (1228, 17101501), (3863, 5436356), (4427, 4743764), (5833, 3600316), (7726, 2718178), (8854, 2371882), (11666, 1800158), (15452, 1359089), (17708, 1185941), (23332, 900079), (71531, 293588), (73397, 286124), (143062, 146794)]