21659430

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1$

素因数の和:158

約数の個数: 128

約数和(自身を含む): 61286400

約数和(自身を除く): 39626970

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 19, 26, 30, 37, 38, 39, 57, 65, 74, 78, 79, 95, 111, 114, 130, 158, 185, 190, 195, 222, 237, 247, 285, 370, 390, 395, 474, 481, 494, 555, 570, 703, 741, 790, 962, 1027, 1110, 1185, 1235, 1406, 1443, 1482, 1501, 2054, 2109, 2370, 2405, 2470, 2886, 2923, 3002, 3081, 3515, 3705, 4218, 4503, 4810, 5135, 5846, 6162, 7030, 7215, 7410, 7505, 8769, 9006, 9139, 10270, 10545, 14430, 14615, 15010, 15405, 17538, 18278, 19513, 21090, 22515, 27417, 29230, 30810, 37999, 39026, 43845, 45030, 45695, 54834, 55537, 58539, 75998, 87690, 91390, 97565, 111074, 113997, 117078, 137085, 166611, 189995, 195130, 227994, 274170, 277685, 292695, 333222, 379990, 555370, 569985, 585390, 721981, 833055, 1139970, 1443962, 1666110, 2165943, 3609905, 4331886, 7219810, 10829715, 21659430]

約数ペア:

[(1, 21659430), (2, 10829715), (3, 7219810), (5, 4331886), (6, 3609905), (10, 2165943), (13, 1666110), (15, 1443962), (19, 1139970), (26, 833055), (30, 721981), (37, 585390), (38, 569985), (39, 555370), (57, 379990), (65, 333222), (74, 292695), (78, 277685), (79, 274170), (95, 227994), (111, 195130), (114, 189995), (130, 166611), (158, 137085), (185, 117078), (190, 113997), (195, 111074), (222, 97565), (237, 91390), (247, 87690), (285, 75998), (370, 58539), (390, 55537), (395, 54834), (474, 45695), (481, 45030), (494, 43845), (555, 39026), (570, 37999), (703, 30810), (741, 29230), (790, 27417), (962, 22515), (1027, 21090), (1110, 19513), (1185, 18278), (1235, 17538), (1406, 15405), (1443, 15010), (1482, 14615), (1501, 14430), (2054, 10545), (2109, 10270), (2370, 9139), (2405, 9006), (2470, 8769), (2886, 7505), (2923, 7410), (3002, 7215), (3081, 7030), (3515, 6162), (3705, 5846), (4218, 5135), (4503, 4810)]