21515692036

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{409}}^1\times {\mathrm{9749}}^1$

素因数の和:10252

約数の個数: 48

約数和(自身を含む): 40294800000

約数和(自身を除く): 18779107964

約数列:

[1, 2, 4, 19, 38, 71, 76, 142, 284, 409, 818, 1349, 1636, 2698, 5396, 7771, 9749, 15542, 19498, 29039, 31084, 38996, 58078, 116156, 185231, 370462, 551741, 692179, 740924, 1103482, 1384358, 2206964, 2768716, 3987341, 7974682, 13151401, 15949364, 26302802, 52605604, 75759479, 151518958, 283101211, 303037916, 566202422, 1132404844, 5378923009, 10757846018, 21515692036]

約数ペア:

[(1, 21515692036), (2, 10757846018), (4, 5378923009), (19, 1132404844), (38, 566202422), (71, 303037916), (76, 283101211), (142, 151518958), (284, 75759479), (409, 52605604), (818, 26302802), (1349, 15949364), (1636, 13151401), (2698, 7974682), (5396, 3987341), (7771, 2768716), (9749, 2206964), (15542, 1384358), (19498, 1103482), (29039, 740924), (31084, 692179), (38996, 551741), (58078, 370462), (116156, 185231)]