21719250

素因数分解:

$2^1\times 3^2\times 5^3\times 7^2\times {\mathrm{197}}^1$

素因数の和:234

約数の個数: 144

約数和(自身を含む): 68664024

約数和(自身を除く): 46944774

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, 197, 210, 225, 245, 250, 294, 315, 350, 375, 394, 441, 450, 490, 525, 591, 630, 735, 750, 875, 882, 985, 1050, 1125, 1182, 1225, 1379, 1470, 1575, 1750, 1773, 1970, 2205, 2250, 2450, 2625, 2758, 2955, 3150, 3546, 3675, 4137, 4410, 4925, 5250, 5910, 6125, 6895, 7350, 7875, 8274, 8865, 9653, 9850, 11025, 12250, 12411, 13790, 14775, 15750, 17730, 18375, 19306, 20685, 22050, 24625, 24822, 28959, 29550, 34475, 36750, 41370, 44325, 48265, 49250, 55125, 57918, 62055, 68950, 73875, 86877, 88650, 96530, 103425, 110250, 124110, 144795, 147750, 172375, 173754, 206850, 221625, 241325, 289590, 310275, 344750, 434385, 443250, 482650, 517125, 620550, 723975, 868770, 1034250, 1206625, 1447950, 1551375, 2171925, 2413250, 3102750, 3619875, 4343850, 7239750, 10859625, 21719250]

約数ペア:

[(1, 21719250), (2, 10859625), (3, 7239750), (5, 4343850), (6, 3619875), (7, 3102750), (9, 2413250), (10, 2171925), (14, 1551375), (15, 1447950), (18, 1206625), (21, 1034250), (25, 868770), (30, 723975), (35, 620550), (42, 517125), (45, 482650), (49, 443250), (50, 434385), (63, 344750), (70, 310275), (75, 289590), (90, 241325), (98, 221625), (105, 206850), (125, 173754), (126, 172375), (147, 147750), (150, 144795), (175, 124110), (197, 110250), (210, 103425), (225, 96530), (245, 88650), (250, 86877), (294, 73875), (315, 68950), (350, 62055), (375, 57918), (394, 55125), (441, 49250), (450, 48265), (490, 44325), (525, 41370), (591, 36750), (630, 34475), (735, 29550), (750, 28959), (875, 24822), (882, 24625), (985, 22050), (1050, 20685), (1125, 19306), (1182, 18375), (1225, 17730), (1379, 15750), (1470, 14775), (1575, 13790), (1750, 12411), (1773, 12250), (1970, 11025), (2205, 9850), (2250, 9653), (2450, 8865), (2625, 8274), (2758, 7875), (2955, 7350), (3150, 6895), (3546, 6125), (3675, 5910), (4137, 5250), (4410, 4925)]