21492984

素因数分解:

$2^3\times 3^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{277}}^1$

素因数の和:400

約数の個数: 64

約数和(自身を含む): 55844640

約数和(自身を除く): 34351656

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 53, 61, 106, 122, 159, 183, 212, 244, 277, 318, 366, 424, 488, 554, 636, 732, 831, 1108, 1272, 1464, 1662, 2216, 3233, 3324, 6466, 6648, 9699, 12932, 14681, 16897, 19398, 25864, 29362, 33794, 38796, 44043, 50691, 58724, 67588, 77592, 88086, 101382, 117448, 135176, 176172, 202764, 352344, 405528, 895541, 1791082, 2686623, 3582164, 5373246, 7164328, 10746492, 21492984]

約数ペア:

[(1, 21492984), (2, 10746492), (3, 7164328), (4, 5373246), (6, 3582164), (8, 2686623), (12, 1791082), (24, 895541), (53, 405528), (61, 352344), (106, 202764), (122, 176172), (159, 135176), (183, 117448), (212, 101382), (244, 88086), (277, 77592), (318, 67588), (366, 58724), (424, 50691), (488, 44043), (554, 38796), (636, 33794), (732, 29362), (831, 25864), (1108, 19398), (1272, 16897), (1464, 14681), (1662, 12932), (2216, 9699), (3233, 6648), (3324, 6466)]