21934220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{14243}}^1$

素因数の和:14270

約数の個数: 48

約数和(自身を含む): 57431808

約数和(自身を除く): 35497588

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 14243, 28486, 56972, 71215, 99701, 142430, 156673, 199402, 284860, 313346, 398804, 498505, 626692, 783365, 997010, 1096711, 1566730, 1994020, 2193422, 3133460, 4386844, 5483555, 10967110, 21934220]

約数ペア:

[(1, 21934220), (2, 10967110), (4, 5483555), (5, 4386844), (7, 3133460), (10, 2193422), (11, 1994020), (14, 1566730), (20, 1096711), (22, 997010), (28, 783365), (35, 626692), (44, 498505), (55, 398804), (70, 313346), (77, 284860), (110, 199402), (140, 156673), (154, 142430), (220, 99701), (308, 71215), (385, 56972), (770, 28486), (1540, 14243)]