21384160

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{313}}^1$

素因数の和:396

約数の個数: 96

約数和(自身を含む): 58871232

約数和(自身を除く): 37487072

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 61, 70, 80, 112, 122, 140, 160, 224, 244, 280, 305, 313, 427, 488, 560, 610, 626, 854, 976, 1120, 1220, 1252, 1565, 1708, 1952, 2135, 2191, 2440, 2504, 3130, 3416, 4270, 4382, 4880, 5008, 6260, 6832, 8540, 8764, 9760, 10016, 10955, 12520, 13664, 17080, 17528, 19093, 21910, 25040, 34160, 35056, 38186, 43820, 50080, 68320, 70112, 76372, 87640, 95465, 133651, 152744, 175280, 190930, 267302, 305488, 350560, 381860, 534604, 610976, 668255, 763720, 1069208, 1336510, 1527440, 2138416, 2673020, 3054880, 4276832, 5346040, 10692080, 21384160]

約数ペア:

[(1, 21384160), (2, 10692080), (4, 5346040), (5, 4276832), (7, 3054880), (8, 2673020), (10, 2138416), (14, 1527440), (16, 1336510), (20, 1069208), (28, 763720), (32, 668255), (35, 610976), (40, 534604), (56, 381860), (61, 350560), (70, 305488), (80, 267302), (112, 190930), (122, 175280), (140, 152744), (160, 133651), (224, 95465), (244, 87640), (280, 76372), (305, 70112), (313, 68320), (427, 50080), (488, 43820), (560, 38186), (610, 35056), (626, 34160), (854, 25040), (976, 21910), (1120, 19093), (1220, 17528), (1252, 17080), (1565, 13664), (1708, 12520), (1952, 10955), (2135, 10016), (2191, 9760), (2440, 8764), (2504, 8540), (3130, 6832), (3416, 6260), (4270, 5008), (4382, 4880)]