21207438

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{4549}}^1$

素因数の和:4601

約数の個数: 48

約数和(自身を含む): 53944800

約数和(自身を除く): 32737362

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 37, 42, 63, 74, 111, 126, 222, 259, 333, 518, 666, 777, 1554, 2331, 4549, 4662, 9098, 13647, 27294, 31843, 40941, 63686, 81882, 95529, 168313, 191058, 286587, 336626, 504939, 573174, 1009878, 1178191, 1514817, 2356382, 3029634, 3534573, 7069146, 10603719, 21207438]

約数ペア:

[(1, 21207438), (2, 10603719), (3, 7069146), (6, 3534573), (7, 3029634), (9, 2356382), (14, 1514817), (18, 1178191), (21, 1009878), (37, 573174), (42, 504939), (63, 336626), (74, 286587), (111, 191058), (126, 168313), (222, 95529), (259, 81882), (333, 63686), (518, 40941), (666, 31843), (777, 27294), (1554, 13647), (2331, 9098), (4549, 4662)]