19618935

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{379}}^1$

素因数の和:440

約数の個数: 64

約数和(自身を含む): 39398400

約数和(自身を除く): 19779465

約数列:

[1, 3, 5, 7, 15, 17, 21, 29, 35, 51, 85, 87, 105, 119, 145, 203, 255, 357, 379, 435, 493, 595, 609, 1015, 1137, 1479, 1785, 1895, 2465, 2653, 3045, 3451, 5685, 6443, 7395, 7959, 10353, 10991, 13265, 17255, 19329, 32215, 32973, 39795, 45101, 51765, 54955, 76937, 96645, 135303, 164865, 186847, 225505, 230811, 384685, 560541, 676515, 934235, 1154055, 1307929, 2802705, 3923787, 6539645, 19618935]

約数ペア:

[(1, 19618935), (3, 6539645), (5, 3923787), (7, 2802705), (15, 1307929), (17, 1154055), (21, 934235), (29, 676515), (35, 560541), (51, 384685), (85, 230811), (87, 225505), (105, 186847), (119, 164865), (145, 135303), (203, 96645), (255, 76937), (357, 54955), (379, 51765), (435, 45101), (493, 39795), (595, 32973), (609, 32215), (1015, 19329), (1137, 17255), (1479, 13265), (1785, 10991), (1895, 10353), (2465, 7959), (2653, 7395), (3045, 6443), (3451, 5685)]