21046509

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{167}}^1$

素因数の和:270

約数の個数: 48

約数和(自身を含む): 35642880

約数和(自身を除く): 14596371

約数列:

[1, 3, 9, 11, 19, 33, 57, 67, 99, 167, 171, 201, 209, 501, 603, 627, 737, 1273, 1503, 1837, 1881, 2211, 3173, 3819, 5511, 6633, 9519, 11189, 11457, 14003, 16533, 28557, 33567, 34903, 42009, 100701, 104709, 123079, 126027, 212591, 314127, 369237, 637773, 1107711, 1913319, 2338501, 7015503, 21046509]

約数ペア:

[(1, 21046509), (3, 7015503), (9, 2338501), (11, 1913319), (19, 1107711), (33, 637773), (57, 369237), (67, 314127), (99, 212591), (167, 126027), (171, 123079), (201, 104709), (209, 100701), (501, 42009), (603, 34903), (627, 33567), (737, 28557), (1273, 16533), (1503, 14003), (1837, 11457), (1881, 11189), (2211, 9519), (3173, 6633), (3819, 5511)]