21186375

素因数分解:

$3^1\times 5^3\times 7^2\times {\mathrm{1153}}^1$

素因数の和:1185

約数の個数: 48

約数和(自身を含む): 41045472

約数和(自身を除く): 19859097

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 49, 75, 105, 125, 147, 175, 245, 375, 525, 735, 875, 1153, 1225, 2625, 3459, 3675, 5765, 6125, 8071, 17295, 18375, 24213, 28825, 40355, 56497, 86475, 121065, 144125, 169491, 201775, 282485, 432375, 605325, 847455, 1008875, 1412425, 3026625, 4237275, 7062125, 21186375]

約数ペア:

[(1, 21186375), (3, 7062125), (5, 4237275), (7, 3026625), (15, 1412425), (21, 1008875), (25, 847455), (35, 605325), (49, 432375), (75, 282485), (105, 201775), (125, 169491), (147, 144125), (175, 121065), (245, 86475), (375, 56497), (525, 40355), (735, 28825), (875, 24213), (1153, 18375), (1225, 17295), (2625, 8071), (3459, 6125), (3675, 5765)]