21396888

素因数分解:

$2^3\times 3^2\times {\mathrm{19}}^1\times {\mathrm{15641}}^1$

素因数の和:15672

約数の個数: 48

約数和(自身を含む): 61003800

約数和(自身を除く): 39606912

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 36, 38, 57, 72, 76, 114, 152, 171, 228, 342, 456, 684, 1368, 15641, 31282, 46923, 62564, 93846, 125128, 140769, 187692, 281538, 297179, 375384, 563076, 594358, 891537, 1126152, 1188716, 1783074, 2377432, 2674611, 3566148, 5349222, 7132296, 10698444, 21396888]

約数ペア:

[(1, 21396888), (2, 10698444), (3, 7132296), (4, 5349222), (6, 3566148), (8, 2674611), (9, 2377432), (12, 1783074), (18, 1188716), (19, 1126152), (24, 891537), (36, 594358), (38, 563076), (57, 375384), (72, 297179), (76, 281538), (114, 187692), (152, 140769), (171, 125128), (228, 93846), (342, 62564), (456, 46923), (684, 31282), (1368, 15641)]