21088896052

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^2\times {\mathrm{47}}^1\times {\mathrm{30293}}^1$

素因数の和:30397

約数の個数: 72

約数和(自身を含む): 45030940416

約数和(自身を除く): 23942044364

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 47, 92, 94, 161, 188, 322, 329, 529, 644, 658, 1058, 1081, 1316, 2116, 2162, 3703, 4324, 7406, 7567, 14812, 15134, 24863, 30268, 30293, 49726, 60586, 99452, 121172, 174041, 212051, 348082, 424102, 696164, 696739, 848204, 1393478, 1423771, 2786956, 2847542, 4877173, 5695084, 9754346, 9966397, 16024997, 19508692, 19932794, 32049994, 32746733, 39865588, 64099988, 65493466, 112174979, 130986932, 224349958, 229227131, 448699916, 458454262, 753174859, 916908524, 1506349718, 3012699436, 5272224013, 10544448026, 21088896052]

約数ペア:

[(1, 21088896052), (2, 10544448026), (4, 5272224013), (7, 3012699436), (14, 1506349718), (23, 916908524), (28, 753174859), (46, 458454262), (47, 448699916), (92, 229227131), (94, 224349958), (161, 130986932), (188, 112174979), (322, 65493466), (329, 64099988), (529, 39865588), (644, 32746733), (658, 32049994), (1058, 19932794), (1081, 19508692), (1316, 16024997), (2116, 9966397), (2162, 9754346), (3703, 5695084), (4324, 4877173), (7406, 2847542), (7567, 2786956), (14812, 1423771), (15134, 1393478), (24863, 848204), (30268, 696739), (30293, 696164), (49726, 424102), (60586, 348082), (99452, 212051), (121172, 174041)]