639422013

素因数分解:

$3^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1\times {\mathrm{127}}^1\times {\mathrm{173}}^1$

素因数の和:501

約数の個数: 32

約数和(自身を含む): 881971200

約数和(自身を除く): 242549187

約数列:

[1, 3, 89, 109, 127, 173, 267, 327, 381, 519, 9701, 11303, 13843, 15397, 18857, 21971, 29103, 33909, 41529, 46191, 56571, 65913, 1232027, 1678273, 1955419, 2394839, 3696081, 5034819, 5866257, 7184517, 213140671, 639422013]

約数ペア:

[(1, 639422013), (3, 213140671), (89, 7184517), (109, 5866257), (127, 5034819), (173, 3696081), (267, 2394839), (327, 1955419), (381, 1678273), (519, 1232027), (9701, 65913), (11303, 56571), (13843, 46191), (15397, 41529), (18857, 33909), (21971, 29103)]