21009630

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:130

約数の個数: 128

約数和(自身を含む): 58060800

約数和(自身を除く): 37051170

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 29, 30, 31, 38, 41, 57, 58, 62, 82, 87, 93, 95, 114, 123, 145, 155, 174, 186, 190, 205, 246, 285, 290, 310, 410, 435, 465, 551, 570, 589, 615, 779, 870, 899, 930, 1102, 1178, 1189, 1230, 1271, 1558, 1653, 1767, 1798, 2337, 2378, 2542, 2697, 2755, 2945, 3306, 3534, 3567, 3813, 3895, 4495, 4674, 5394, 5510, 5890, 5945, 6355, 7134, 7626, 7790, 8265, 8835, 8990, 11685, 11890, 12710, 13485, 16530, 17081, 17670, 17835, 19065, 22591, 23370, 24149, 26970, 34162, 35670, 36859, 38130, 45182, 48298, 51243, 67773, 72447, 73718, 85405, 102486, 110577, 112955, 120745, 135546, 144894, 170810, 184295, 221154, 225910, 241490, 256215, 338865, 362235, 368590, 512430, 552885, 677730, 700321, 724470, 1105770, 1400642, 2100963, 3501605, 4201926, 7003210, 10504815, 21009630]

約数ペア:

[(1, 21009630), (2, 10504815), (3, 7003210), (5, 4201926), (6, 3501605), (10, 2100963), (15, 1400642), (19, 1105770), (29, 724470), (30, 700321), (31, 677730), (38, 552885), (41, 512430), (57, 368590), (58, 362235), (62, 338865), (82, 256215), (87, 241490), (93, 225910), (95, 221154), (114, 184295), (123, 170810), (145, 144894), (155, 135546), (174, 120745), (186, 112955), (190, 110577), (205, 102486), (246, 85405), (285, 73718), (290, 72447), (310, 67773), (410, 51243), (435, 48298), (465, 45182), (551, 38130), (570, 36859), (589, 35670), (615, 34162), (779, 26970), (870, 24149), (899, 23370), (930, 22591), (1102, 19065), (1178, 17835), (1189, 17670), (1230, 17081), (1271, 16530), (1558, 13485), (1653, 12710), (1767, 11890), (1798, 11685), (2337, 8990), (2378, 8835), (2542, 8265), (2697, 7790), (2755, 7626), (2945, 7134), (3306, 6355), (3534, 5945), (3567, 5890), (3813, 5510), (3895, 5394), (4495, 4674)]