21097146

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{983}}^1$

素因数の和:1075

約数の個数: 48

約数和(自身を含む): 49806144

約数和(自身を除く): 28708998

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 73, 98, 146, 147, 219, 294, 438, 511, 983, 1022, 1533, 1966, 2949, 3066, 3577, 5898, 6881, 7154, 10731, 13762, 20643, 21462, 41286, 48167, 71759, 96334, 143518, 144501, 215277, 289002, 430554, 502313, 1004626, 1506939, 3013878, 3516191, 7032382, 10548573, 21097146]

約数ペア:

[(1, 21097146), (2, 10548573), (3, 7032382), (6, 3516191), (7, 3013878), (14, 1506939), (21, 1004626), (42, 502313), (49, 430554), (73, 289002), (98, 215277), (146, 144501), (147, 143518), (219, 96334), (294, 71759), (438, 48167), (511, 41286), (983, 21462), (1022, 20643), (1533, 13762), (1966, 10731), (2949, 7154), (3066, 6881), (3577, 5898)]