19776796

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{541}}^1$

素因数の和:614

約数の個数: 48

約数和(自身を含む): 40368160

約数和(自身を除く): 20591364

約数列:

[1, 2, 4, 13, 19, 26, 37, 38, 52, 74, 76, 148, 247, 481, 494, 541, 703, 962, 988, 1082, 1406, 1924, 2164, 2812, 7033, 9139, 10279, 14066, 18278, 20017, 20558, 28132, 36556, 40034, 41116, 80068, 133627, 260221, 267254, 380323, 520442, 534508, 760646, 1040884, 1521292, 4944199, 9888398, 19776796]

約数ペア:

[(1, 19776796), (2, 9888398), (4, 4944199), (13, 1521292), (19, 1040884), (26, 760646), (37, 534508), (38, 520442), (52, 380323), (74, 267254), (76, 260221), (148, 133627), (247, 80068), (481, 41116), (494, 40034), (541, 36556), (703, 28132), (962, 20558), (988, 20017), (1082, 18278), (1406, 14066), (1924, 10279), (2164, 9139), (2812, 7033)]