21939750

素因数分解:

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

素因数の和:236

約数の個数: 144

約数和(自身を含む): 69357600

約数和(自身を除く): 47417850

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 30, 35, 42, 45, 49, 50, 63, 70, 75, 90, 98, 105, 125, 126, 147, 150, 175, 199, 210, 225, 245, 250, 294, 315, 350, 375, 398, 441, 450, 490, 525, 597, 630, 735, 750, 875, 882, 995, 1050, 1125, 1194, 1225, 1393, 1470, 1575, 1750, 1791, 1990, 2205, 2250, 2450, 2625, 2786, 2985, 3150, 3582, 3675, 4179, 4410, 4975, 5250, 5970, 6125, 6965, 7350, 7875, 8358, 8955, 9751, 9950, 11025, 12250, 12537, 13930, 14925, 15750, 17910, 18375, 19502, 20895, 22050, 24875, 25074, 29253, 29850, 34825, 36750, 41790, 44775, 48755, 49750, 55125, 58506, 62685, 69650, 74625, 87759, 89550, 97510, 104475, 110250, 125370, 146265, 149250, 174125, 175518, 208950, 223875, 243775, 292530, 313425, 348250, 438795, 447750, 487550, 522375, 626850, 731325, 877590, 1044750, 1218875, 1462650, 1567125, 2193975, 2437750, 3134250, 3656625, 4387950, 7313250, 10969875, 21939750]

約数ペア:

[(1, 21939750), (2, 10969875), (3, 7313250), (5, 4387950), (6, 3656625), (7, 3134250), (9, 2437750), (10, 2193975), (14, 1567125), (15, 1462650), (18, 1218875), (21, 1044750), (25, 877590), (30, 731325), (35, 626850), (42, 522375), (45, 487550), (49, 447750), (50, 438795), (63, 348250), (70, 313425), (75, 292530), (90, 243775), (98, 223875), (105, 208950), (125, 175518), (126, 174125), (147, 149250), (150, 146265), (175, 125370), (199, 110250), (210, 104475), (225, 97510), (245, 89550), (250, 87759), (294, 74625), (315, 69650), (350, 62685), (375, 58506), (398, 55125), (441, 49750), (450, 48755), (490, 44775), (525, 41790), (597, 36750), (630, 34825), (735, 29850), (750, 29253), (875, 25074), (882, 24875), (995, 22050), (1050, 20895), (1125, 19502), (1194, 18375), (1225, 17910), (1393, 15750), (1470, 14925), (1575, 13930), (1750, 12537), (1791, 12250), (1990, 11025), (2205, 9950), (2250, 9751), (2450, 8955), (2625, 8358), (2786, 7875), (2985, 7350), (3150, 6965), (3582, 6125), (3675, 5970), (4179, 5250), (4410, 4975)]