19181925

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{641}}^1$

素因数の和:683

約数の個数: 72

約数和(自身を含む): 41396160

約数和(自身を除く): 22214235

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 25, 35, 45, 57, 63, 75, 95, 105, 133, 171, 175, 225, 285, 315, 399, 475, 525, 641, 665, 855, 1197, 1425, 1575, 1923, 1995, 3205, 3325, 4275, 4487, 5769, 5985, 9615, 9975, 12179, 13461, 16025, 22435, 28845, 29925, 36537, 40383, 48075, 60895, 67305, 85253, 109611, 112175, 144225, 182685, 201915, 255759, 304475, 336525, 426265, 548055, 767277, 913425, 1009575, 1278795, 2131325, 2740275, 3836385, 6393975, 19181925]

約数ペア:

[(1, 19181925), (3, 6393975), (5, 3836385), (7, 2740275), (9, 2131325), (15, 1278795), (19, 1009575), (21, 913425), (25, 767277), (35, 548055), (45, 426265), (57, 336525), (63, 304475), (75, 255759), (95, 201915), (105, 182685), (133, 144225), (171, 112175), (175, 109611), (225, 85253), (285, 67305), (315, 60895), (399, 48075), (475, 40383), (525, 36537), (641, 29925), (665, 28845), (855, 22435), (1197, 16025), (1425, 13461), (1575, 12179), (1923, 9975), (1995, 9615), (3205, 5985), (3325, 5769), (4275, 4487)]