21772590

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{521}}^1$

素因数の和:737

約数の個数: 64

約数和(自身を含む): 60134400

約数和(自身を除く): 38361810

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 199, 210, 398, 521, 597, 995, 1042, 1194, 1393, 1563, 1990, 2605, 2786, 2985, 3126, 3647, 4179, 5210, 5970, 6965, 7294, 7815, 8358, 10941, 13930, 15630, 18235, 20895, 21882, 36470, 41790, 54705, 103679, 109410, 207358, 311037, 518395, 622074, 725753, 1036790, 1451506, 1555185, 2177259, 3110370, 3628765, 4354518, 7257530, 10886295, 21772590]

約数ペア:

[(1, 21772590), (2, 10886295), (3, 7257530), (5, 4354518), (6, 3628765), (7, 3110370), (10, 2177259), (14, 1555185), (15, 1451506), (21, 1036790), (30, 725753), (35, 622074), (42, 518395), (70, 311037), (105, 207358), (199, 109410), (210, 103679), (398, 54705), (521, 41790), (597, 36470), (995, 21882), (1042, 20895), (1194, 18235), (1393, 15630), (1563, 13930), (1990, 10941), (2605, 8358), (2786, 7815), (2985, 7294), (3126, 6965), (3647, 5970), (4179, 5210)]