21742875

素因数分解:

$3^2\times 5^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{251}}^1$

素因数の和:290

約数の個数: 96

約数和(自身を含む): 49061376

約数和(自身を除く): 27318501

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 25, 33, 35, 45, 55, 63, 75, 77, 99, 105, 125, 165, 175, 225, 231, 251, 275, 315, 375, 385, 495, 525, 693, 753, 825, 875, 1125, 1155, 1255, 1375, 1575, 1757, 1925, 2259, 2475, 2625, 2761, 3465, 3765, 4125, 5271, 5775, 6275, 7875, 8283, 8785, 9625, 11295, 12375, 13805, 15813, 17325, 18825, 19327, 24849, 26355, 28875, 31375, 41415, 43925, 56475, 57981, 69025, 79065, 86625, 94125, 96635, 124245, 131775, 173943, 207075, 219625, 282375, 289905, 345125, 395325, 483175, 621225, 658875, 869715, 1035375, 1449525, 1976625, 2415875, 3106125, 4348575, 7247625, 21742875]

約数ペア:

[(1, 21742875), (3, 7247625), (5, 4348575), (7, 3106125), (9, 2415875), (11, 1976625), (15, 1449525), (21, 1035375), (25, 869715), (33, 658875), (35, 621225), (45, 483175), (55, 395325), (63, 345125), (75, 289905), (77, 282375), (99, 219625), (105, 207075), (125, 173943), (165, 131775), (175, 124245), (225, 96635), (231, 94125), (251, 86625), (275, 79065), (315, 69025), (375, 57981), (385, 56475), (495, 43925), (525, 41415), (693, 31375), (753, 28875), (825, 26355), (875, 24849), (1125, 19327), (1155, 18825), (1255, 17325), (1375, 15813), (1575, 13805), (1757, 12375), (1925, 11295), (2259, 9625), (2475, 8785), (2625, 8283), (2761, 7875), (3465, 6275), (3765, 5775), (4125, 5271)]