217871955

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{617}}^1$

素因数の和:713

約数の個数: 96

約数和(自身を含む): 462758400

約数和(自身を除く): 244886445

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 35, 45, 57, 59, 63, 95, 105, 133, 171, 177, 285, 295, 315, 399, 413, 531, 617, 665, 855, 885, 1121, 1197, 1239, 1851, 1995, 2065, 2655, 3085, 3363, 3717, 4319, 5553, 5605, 5985, 6195, 7847, 9255, 10089, 11723, 12957, 16815, 18585, 21595, 23541, 27765, 35169, 36403, 38871, 39235, 50445, 58615, 64785, 70623, 82061, 105507, 109209, 117705, 175845, 182015, 194355, 246183, 254821, 327627, 353115, 410305, 527535, 546045, 691657, 738549, 764463, 1230915, 1274105, 1638135, 2074971, 2293389, 3458285, 3692745, 3822315, 4841599, 6224913, 10374855, 11466945, 14524797, 24207995, 31124565, 43574391, 72623985, 217871955]

約数ペア:

[(1, 217871955), (3, 72623985), (5, 43574391), (7, 31124565), (9, 24207995), (15, 14524797), (19, 11466945), (21, 10374855), (35, 6224913), (45, 4841599), (57, 3822315), (59, 3692745), (63, 3458285), (95, 2293389), (105, 2074971), (133, 1638135), (171, 1274105), (177, 1230915), (285, 764463), (295, 738549), (315, 691657), (399, 546045), (413, 527535), (531, 410305), (617, 353115), (665, 327627), (855, 254821), (885, 246183), (1121, 194355), (1197, 182015), (1239, 175845), (1851, 117705), (1995, 109209), (2065, 105507), (2655, 82061), (3085, 70623), (3363, 64785), (3717, 58615), (4319, 50445), (5553, 39235), (5605, 38871), (5985, 36403), (6195, 35169), (7847, 27765), (9255, 23541), (10089, 21595), (11723, 18585), (12957, 16815)]