19904937585

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1663}}^1\times {\mathrm{61381}}^1$

素因数の和:63065

約数の個数: 32

約数和(自身を含む): 34318921728

約数和(自身を除く): 14413984143

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 1663, 4989, 8315, 21619, 24945, 61381, 64857, 108095, 184143, 306905, 324285, 797953, 920715, 2393859, 3989765, 11969295, 102076603, 306229809, 510383015, 1326995839, 1531149045, 3980987517, 6634979195, 19904937585]

約数ペア:

[(1, 19904937585), (3, 6634979195), (5, 3980987517), (13, 1531149045), (15, 1326995839), (39, 510383015), (65, 306229809), (195, 102076603), (1663, 11969295), (4989, 3989765), (8315, 2393859), (21619, 920715), (24945, 797953), (61381, 324285), (64857, 306905), (108095, 184143)]