21990752

素因数分解:

$2^5\times 7^1\times {\mathrm{19}}^1\times {\mathrm{5167}}^1$

素因数の和:5203

約数の個数: 48

約数和(自身を含む): 52093440

約数和(自身を除く): 30102688

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 32, 38, 56, 76, 112, 133, 152, 224, 266, 304, 532, 608, 1064, 2128, 4256, 5167, 10334, 20668, 36169, 41336, 72338, 82672, 98173, 144676, 165344, 196346, 289352, 392692, 578704, 687211, 785384, 1157408, 1374422, 1570768, 2748844, 3141536, 5497688, 10995376, 21990752]

約数ペア:

[(1, 21990752), (2, 10995376), (4, 5497688), (7, 3141536), (8, 2748844), (14, 1570768), (16, 1374422), (19, 1157408), (28, 785384), (32, 687211), (38, 578704), (56, 392692), (76, 289352), (112, 196346), (133, 165344), (152, 144676), (224, 98173), (266, 82672), (304, 72338), (532, 41336), (608, 36169), (1064, 20668), (2128, 10334), (4256, 5167)]