21000901305

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1117}}^1\times {\mathrm{1609}}^1$

素因数の和:2794

約数の個数: 64

約数和(自身を含む): 36287596800

約数和(自身を除く): 15286695495

約数列:

[1, 3, 5, 15, 19, 41, 57, 95, 123, 205, 285, 615, 779, 1117, 1609, 2337, 3351, 3895, 4827, 5585, 8045, 11685, 16755, 21223, 24135, 30571, 45797, 63669, 65969, 91713, 106115, 137391, 152855, 197907, 228985, 318345, 329845, 458565, 686955, 870143, 989535, 1253411, 1797253, 2610429, 3760233, 4350715, 5391759, 6267055, 8986265, 13052145, 18801165, 26958795, 34147807, 73687373, 102443421, 170739035, 221062119, 368436865, 512217105, 1105310595, 1400060087, 4200180261, 7000300435, 21000901305]

約数ペア:

[(1, 21000901305), (3, 7000300435), (5, 4200180261), (15, 1400060087), (19, 1105310595), (41, 512217105), (57, 368436865), (95, 221062119), (123, 170739035), (205, 102443421), (285, 73687373), (615, 34147807), (779, 26958795), (1117, 18801165), (1609, 13052145), (2337, 8986265), (3351, 6267055), (3895, 5391759), (4827, 4350715), (5585, 3760233), (8045, 2610429), (11685, 1797253), (16755, 1253411), (21223, 989535), (24135, 870143), (30571, 686955), (45797, 458565), (63669, 329845), (65969, 318345), (91713, 228985), (106115, 197907), (137391, 152855)]