20848428

素因数分解:

$2^2\times 3^5\times {\mathrm{89}}^1\times {\mathrm{241}}^1$

素因数の和:349

約数の個数: 72

約数和(自身を含む): 55495440

約数和(自身を除く): 34647012

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 89, 108, 162, 178, 241, 243, 267, 324, 356, 482, 486, 534, 723, 801, 964, 972, 1068, 1446, 1602, 2169, 2403, 2892, 3204, 4338, 4806, 6507, 7209, 8676, 9612, 13014, 14418, 19521, 21449, 21627, 26028, 28836, 39042, 42898, 43254, 58563, 64347, 78084, 85796, 86508, 117126, 128694, 193041, 234252, 257388, 386082, 579123, 772164, 1158246, 1737369, 2316492, 3474738, 5212107, 6949476, 10424214, 20848428]

約数ペア:

[(1, 20848428), (2, 10424214), (3, 6949476), (4, 5212107), (6, 3474738), (9, 2316492), (12, 1737369), (18, 1158246), (27, 772164), (36, 579123), (54, 386082), (81, 257388), (89, 234252), (108, 193041), (162, 128694), (178, 117126), (241, 86508), (243, 85796), (267, 78084), (324, 64347), (356, 58563), (482, 43254), (486, 42898), (534, 39042), (723, 28836), (801, 26028), (964, 21627), (972, 21449), (1068, 19521), (1446, 14418), (1602, 13014), (2169, 9612), (2403, 8676), (2892, 7209), (3204, 6507), (4338, 4806)]