20282178

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{149}}^1\times {\mathrm{463}}^1$

素因数の和:631

約数の個数: 48

約数和(自身を含む): 47606400

約数和(自身を除く): 27324222

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 147, 149, 294, 298, 447, 463, 894, 926, 1043, 1389, 2086, 2778, 3129, 3241, 6258, 6482, 7301, 9723, 14602, 19446, 21903, 22687, 43806, 45374, 68061, 68987, 136122, 137974, 206961, 413922, 482909, 965818, 1448727, 2897454, 3380363, 6760726, 10141089, 20282178]

約数ペア:

[(1, 20282178), (2, 10141089), (3, 6760726), (6, 3380363), (7, 2897454), (14, 1448727), (21, 965818), (42, 482909), (49, 413922), (98, 206961), (147, 137974), (149, 136122), (294, 68987), (298, 68061), (447, 45374), (463, 43806), (894, 22687), (926, 21903), (1043, 19446), (1389, 14602), (2086, 9723), (2778, 7301), (3129, 6482), (3241, 6258)]