19204815

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1$

素因数の和:121

約数の個数: 96

約数和(自身を含む): 39890880

約数和(自身を除く): 20686065

約数列:

[1, 3, 5, 7, 15, 17, 21, 29, 35, 49, 51, 53, 85, 87, 105, 119, 145, 147, 159, 203, 245, 255, 265, 357, 371, 435, 493, 595, 609, 735, 795, 833, 901, 1015, 1113, 1421, 1479, 1537, 1785, 1855, 2465, 2499, 2597, 2703, 3045, 3451, 4165, 4263, 4505, 4611, 5565, 6307, 7105, 7395, 7685, 7791, 10353, 10759, 12495, 12985, 13515, 17255, 18921, 21315, 23055, 24157, 26129, 31535, 32277, 38955, 44149, 51765, 53795, 72471, 75313, 78387, 94605, 120785, 130645, 132447, 161385, 182903, 220745, 225939, 362355, 376565, 391935, 548709, 662235, 914515, 1129695, 1280321, 2743545, 3840963, 6401605, 19204815]

約数ペア:

[(1, 19204815), (3, 6401605), (5, 3840963), (7, 2743545), (15, 1280321), (17, 1129695), (21, 914515), (29, 662235), (35, 548709), (49, 391935), (51, 376565), (53, 362355), (85, 225939), (87, 220745), (105, 182903), (119, 161385), (145, 132447), (147, 130645), (159, 120785), (203, 94605), (245, 78387), (255, 75313), (265, 72471), (357, 53795), (371, 51765), (435, 44149), (493, 38955), (595, 32277), (609, 31535), (735, 26129), (795, 24157), (833, 23055), (901, 21315), (1015, 18921), (1113, 17255), (1421, 13515), (1479, 12985), (1537, 12495), (1785, 10759), (1855, 10353), (2465, 7791), (2499, 7685), (2597, 7395), (2703, 7105), (3045, 6307), (3451, 5565), (4165, 4611), (4263, 4505)]