21957350

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{797}}^1$

素因数の和:857

約数の個数: 48

約数和(自身を含む): 44528400

約数和(自身を除く): 22571050

約数列:

[1, 2, 5, 10, 19, 25, 29, 38, 50, 58, 95, 145, 190, 290, 475, 551, 725, 797, 950, 1102, 1450, 1594, 2755, 3985, 5510, 7970, 13775, 15143, 19925, 23113, 27550, 30286, 39850, 46226, 75715, 115565, 151430, 231130, 378575, 439147, 577825, 757150, 878294, 1155650, 2195735, 4391470, 10978675, 21957350]

約数ペア:

[(1, 21957350), (2, 10978675), (5, 4391470), (10, 2195735), (19, 1155650), (25, 878294), (29, 757150), (38, 577825), (50, 439147), (58, 378575), (95, 231130), (145, 151430), (190, 115565), (290, 75715), (475, 46226), (551, 39850), (725, 30286), (797, 27550), (950, 23113), (1102, 19925), (1450, 15143), (1594, 13775), (2755, 7970), (3985, 5510)]