21491851390

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{1303}}^1\times {\mathrm{31121}}^1$

素因数の和:32484

約数の個数: 32

約数和(自身を含む): 39446761536

約数和(自身を除く): 17954910146

約数列:

[1, 2, 5, 10, 53, 106, 265, 530, 1303, 2606, 6515, 13030, 31121, 62242, 69059, 138118, 155605, 311210, 345295, 690590, 1649413, 3298826, 8247065, 16494130, 40550663, 81101326, 202753315, 405506630, 2149185139, 4298370278, 10745925695, 21491851390]

約数ペア:

[(1, 21491851390), (2, 10745925695), (5, 4298370278), (10, 2149185139), (53, 405506630), (106, 202753315), (265, 81101326), (530, 40550663), (1303, 16494130), (2606, 8247065), (6515, 3298826), (13030, 1649413), (31121, 690590), (62242, 345295), (69059, 311210), (138118, 155605)]