19900398

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{2381}}^1$

素因数の和:2592

約数の個数: 32

約数和(自身を含む): 45734400

約数和(自身を除く): 25834002

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 199, 398, 597, 1194, 1393, 2381, 2786, 4179, 4762, 7143, 8358, 14286, 16667, 33334, 50001, 100002, 473819, 947638, 1421457, 2842914, 3316733, 6633466, 9950199, 19900398]

約数ペア:

[(1, 19900398), (2, 9950199), (3, 6633466), (6, 3316733), (7, 2842914), (14, 1421457), (21, 947638), (42, 473819), (199, 100002), (398, 50001), (597, 33334), (1194, 16667), (1393, 14286), (2381, 8358), (2786, 7143), (4179, 4762)]