21697578

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{941}}^1$

素因数の和:1020

約数の個数: 64

約数和(自身を含む): 56067840

約数和(自身を除く): 34370262

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 61, 63, 122, 126, 183, 189, 366, 378, 427, 549, 854, 941, 1098, 1281, 1647, 1882, 2562, 2823, 3294, 3843, 5646, 6587, 7686, 8469, 11529, 13174, 16938, 19761, 23058, 25407, 39522, 50814, 57401, 59283, 114802, 118566, 172203, 177849, 344406, 355698, 401807, 516609, 803614, 1033218, 1205421, 1549827, 2410842, 3099654, 3616263, 7232526, 10848789, 21697578]

約数ペア:

[(1, 21697578), (2, 10848789), (3, 7232526), (6, 3616263), (7, 3099654), (9, 2410842), (14, 1549827), (18, 1205421), (21, 1033218), (27, 803614), (42, 516609), (54, 401807), (61, 355698), (63, 344406), (122, 177849), (126, 172203), (183, 118566), (189, 114802), (366, 59283), (378, 57401), (427, 50814), (549, 39522), (854, 25407), (941, 23058), (1098, 19761), (1281, 16938), (1647, 13174), (1882, 11529), (2562, 8469), (2823, 7686), (3294, 6587), (3843, 5646)]