21802590

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1543}}^1$

素因数の和:1713

約数の個数: 48

約数和(自身を含む): 57084768

約数和(自身を除く): 35282178

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 157, 314, 471, 785, 942, 1413, 1543, 1570, 2355, 2826, 3086, 4629, 4710, 7065, 7715, 9258, 13887, 14130, 15430, 23145, 27774, 46290, 69435, 138870, 242251, 484502, 726753, 1211255, 1453506, 2180259, 2422510, 3633765, 4360518, 7267530, 10901295, 21802590]

約数ペア:

[(1, 21802590), (2, 10901295), (3, 7267530), (5, 4360518), (6, 3633765), (9, 2422510), (10, 2180259), (15, 1453506), (18, 1211255), (30, 726753), (45, 484502), (90, 242251), (157, 138870), (314, 69435), (471, 46290), (785, 27774), (942, 23145), (1413, 15430), (1543, 14130), (1570, 13887), (2355, 9258), (2826, 7715), (3086, 7065), (4629, 4710)]