19992798

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{227}}^1\times {\mathrm{233}}^1$

素因数の和:478

約数の個数: 64

約数和(自身を含む): 51217920

約数和(自身を除く): 31225122

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 227, 233, 378, 454, 466, 681, 699, 1362, 1398, 1589, 1631, 2043, 2097, 3178, 3262, 4086, 4194, 4767, 4893, 6129, 6291, 9534, 9786, 12258, 12582, 14301, 14679, 28602, 29358, 42903, 44037, 52891, 85806, 88074, 105782, 158673, 317346, 370237, 476019, 740474, 952038, 1110711, 1428057, 2221422, 2856114, 3332133, 6664266, 9996399, 19992798]

約数ペア:

[(1, 19992798), (2, 9996399), (3, 6664266), (6, 3332133), (7, 2856114), (9, 2221422), (14, 1428057), (18, 1110711), (21, 952038), (27, 740474), (42, 476019), (54, 370237), (63, 317346), (126, 158673), (189, 105782), (227, 88074), (233, 85806), (378, 52891), (454, 44037), (466, 42903), (681, 29358), (699, 28602), (1362, 14679), (1398, 14301), (1589, 12582), (1631, 12258), (2043, 9786), (2097, 9534), (3178, 6291), (3262, 6129), (4086, 4893), (4194, 4767)]