20951328

素因数分解:

$2^5\times 3^1\times {\mathrm{41}}^1\times {\mathrm{5323}}^1$

素因数の和:5377

約数の個数: 48

約数和(自身を含む): 56349216

約数和(自身を除く): 35397888

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 41, 48, 82, 96, 123, 164, 246, 328, 492, 656, 984, 1312, 1968, 3936, 5323, 10646, 15969, 21292, 31938, 42584, 63876, 85168, 127752, 170336, 218243, 255504, 436486, 511008, 654729, 872972, 1309458, 1745944, 2618916, 3491888, 5237832, 6983776, 10475664, 20951328]

約数ペア:

[(1, 20951328), (2, 10475664), (3, 6983776), (4, 5237832), (6, 3491888), (8, 2618916), (12, 1745944), (16, 1309458), (24, 872972), (32, 654729), (41, 511008), (48, 436486), (82, 255504), (96, 218243), (123, 170336), (164, 127752), (246, 85168), (328, 63876), (492, 42584), (656, 31938), (984, 21292), (1312, 15969), (1968, 10646), (3936, 5323)]