21030540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{103}}^1$

素因数の和:239

約数の個数: 96

約数和(自身を含む): 61641216

約数和(自身を除く): 40610676

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 41, 60, 82, 83, 103, 123, 164, 166, 205, 206, 246, 249, 309, 332, 410, 412, 415, 492, 498, 515, 615, 618, 820, 830, 996, 1030, 1230, 1236, 1245, 1545, 1660, 2060, 2460, 2490, 3090, 3403, 4223, 4980, 6180, 6806, 8446, 8549, 10209, 12669, 13612, 16892, 17015, 17098, 20418, 21115, 25338, 25647, 34030, 34196, 40836, 42230, 42745, 50676, 51045, 51294, 63345, 68060, 84460, 85490, 102090, 102588, 126690, 128235, 170980, 204180, 253380, 256470, 350509, 512940, 701018, 1051527, 1402036, 1752545, 2103054, 3505090, 4206108, 5257635, 7010180, 10515270, 21030540]

約数ペア:

[(1, 21030540), (2, 10515270), (3, 7010180), (4, 5257635), (5, 4206108), (6, 3505090), (10, 2103054), (12, 1752545), (15, 1402036), (20, 1051527), (30, 701018), (41, 512940), (60, 350509), (82, 256470), (83, 253380), (103, 204180), (123, 170980), (164, 128235), (166, 126690), (205, 102588), (206, 102090), (246, 85490), (249, 84460), (309, 68060), (332, 63345), (410, 51294), (412, 51045), (415, 50676), (492, 42745), (498, 42230), (515, 40836), (615, 34196), (618, 34030), (820, 25647), (830, 25338), (996, 21115), (1030, 20418), (1230, 17098), (1236, 17015), (1245, 16892), (1545, 13612), (1660, 12669), (2060, 10209), (2460, 8549), (2490, 8446), (3090, 6806), (3403, 6180), (4223, 4980)]