19521075

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{103}}^1$

素因数の和:161

約数の個数: 72

約数和(自身を含む): 39307008

約数和(自身を除く): 19785933

約数列:

[1, 3, 5, 7, 15, 19, 21, 25, 35, 57, 75, 95, 103, 105, 133, 175, 285, 309, 361, 399, 475, 515, 525, 665, 721, 1083, 1425, 1545, 1805, 1957, 1995, 2163, 2527, 2575, 3325, 3605, 5415, 5871, 7581, 7725, 9025, 9785, 9975, 10815, 12635, 13699, 18025, 27075, 29355, 37183, 37905, 41097, 48925, 54075, 63175, 68495, 111549, 146775, 185915, 189525, 205485, 260281, 342475, 557745, 780843, 929575, 1027425, 1301405, 2788725, 3904215, 6507025, 19521075]

約数ペア:

[(1, 19521075), (3, 6507025), (5, 3904215), (7, 2788725), (15, 1301405), (19, 1027425), (21, 929575), (25, 780843), (35, 557745), (57, 342475), (75, 260281), (95, 205485), (103, 189525), (105, 185915), (133, 146775), (175, 111549), (285, 68495), (309, 63175), (361, 54075), (399, 48925), (475, 41097), (515, 37905), (525, 37183), (665, 29355), (721, 27075), (1083, 18025), (1425, 13699), (1545, 12635), (1805, 10815), (1957, 9975), (1995, 9785), (2163, 9025), (2527, 7725), (2575, 7581), (3325, 5871), (3605, 5415)]