21396550

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{113}}^1\times {\mathrm{541}}^1$

素因数の和:673

約数の個数: 48

約数和(自身を含む): 45970272

約数和(自身を除く): 24573722

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 113, 175, 226, 350, 541, 565, 791, 1082, 1130, 1582, 2705, 2825, 3787, 3955, 5410, 5650, 7574, 7910, 13525, 18935, 19775, 27050, 37870, 39550, 61133, 94675, 122266, 189350, 305665, 427931, 611330, 855862, 1528325, 2139655, 3056650, 4279310, 10698275, 21396550]

約数ペア:

[(1, 21396550), (2, 10698275), (5, 4279310), (7, 3056650), (10, 2139655), (14, 1528325), (25, 855862), (35, 611330), (50, 427931), (70, 305665), (113, 189350), (175, 122266), (226, 94675), (350, 61133), (541, 39550), (565, 37870), (791, 27050), (1082, 19775), (1130, 18935), (1582, 13525), (2705, 7910), (2825, 7574), (3787, 5650), (3955, 5410)]