21298290

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{563}}^1$

素因数の和:683

約数の個数: 64

約数和(自身を含む): 55714176

約数和(自身を除く): 34415886

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 97, 130, 194, 195, 291, 390, 485, 563, 582, 970, 1126, 1261, 1455, 1689, 2522, 2815, 2910, 3378, 3783, 5630, 6305, 7319, 7566, 8445, 12610, 14638, 16890, 18915, 21957, 36595, 37830, 43914, 54611, 73190, 109222, 109785, 163833, 219570, 273055, 327666, 546110, 709943, 819165, 1419886, 1638330, 2129829, 3549715, 4259658, 7099430, 10649145, 21298290]

約数ペア:

[(1, 21298290), (2, 10649145), (3, 7099430), (5, 4259658), (6, 3549715), (10, 2129829), (13, 1638330), (15, 1419886), (26, 819165), (30, 709943), (39, 546110), (65, 327666), (78, 273055), (97, 219570), (130, 163833), (194, 109785), (195, 109222), (291, 73190), (390, 54611), (485, 43914), (563, 37830), (582, 36595), (970, 21957), (1126, 18915), (1261, 16890), (1455, 14638), (1689, 12610), (2522, 8445), (2815, 7566), (2910, 7319), (3378, 6305), (3783, 5630)]