21231306

素因数分解:

$2^1\times 3^2\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{457}}^1$

素因数の和:583

約数の個数: 48

約数和(自身を含む): 48227400

約数和(自身を除く): 26996094

約数列:

[1, 2, 3, 6, 9, 18, 29, 58, 87, 89, 174, 178, 261, 267, 457, 522, 534, 801, 914, 1371, 1602, 2581, 2742, 4113, 5162, 7743, 8226, 13253, 15486, 23229, 26506, 39759, 40673, 46458, 79518, 81346, 119277, 122019, 238554, 244038, 366057, 732114, 1179517, 2359034, 3538551, 7077102, 10615653, 21231306]

約数ペア:

[(1, 21231306), (2, 10615653), (3, 7077102), (6, 3538551), (9, 2359034), (18, 1179517), (29, 732114), (58, 366057), (87, 244038), (89, 238554), (174, 122019), (178, 119277), (261, 81346), (267, 79518), (457, 46458), (522, 40673), (534, 39759), (801, 26506), (914, 23229), (1371, 15486), (1602, 13253), (2581, 8226), (2742, 7743), (4113, 5162)]