21962955

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1$

素因数の和:244

約数の個数: 64

約数和(自身を含む): 43084800

約数和(自身を除く): 21121845

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 95, 101, 105, 109, 133, 285, 303, 327, 399, 505, 545, 665, 707, 763, 1515, 1635, 1919, 1995, 2071, 2121, 2289, 3535, 3815, 5757, 6213, 9595, 10355, 10605, 11009, 11445, 13433, 14497, 28785, 31065, 33027, 40299, 43491, 55045, 67165, 72485, 77063, 165135, 201495, 209171, 217455, 231189, 385315, 627513, 1045855, 1155945, 1464197, 3137565, 4392591, 7320985, 21962955]

約数ペア:

[(1, 21962955), (3, 7320985), (5, 4392591), (7, 3137565), (15, 1464197), (19, 1155945), (21, 1045855), (35, 627513), (57, 385315), (95, 231189), (101, 217455), (105, 209171), (109, 201495), (133, 165135), (285, 77063), (303, 72485), (327, 67165), (399, 55045), (505, 43491), (545, 40299), (665, 33027), (707, 31065), (763, 28785), (1515, 14497), (1635, 13433), (1919, 11445), (1995, 11009), (2071, 10605), (2121, 10355), (2289, 9595), (3535, 6213), (3815, 5757)]