19741491

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{467}}^1$

素因数の和:552

約数の個数: 48

約数和(自身を含む): 36211968

約数和(自身を除く): 16470477

約数列:

[1, 3, 7, 9, 11, 21, 33, 61, 63, 77, 99, 183, 231, 427, 467, 549, 671, 693, 1281, 1401, 2013, 3269, 3843, 4203, 4697, 5137, 6039, 9807, 14091, 15411, 28487, 29421, 35959, 42273, 46233, 85461, 107877, 199409, 256383, 313357, 323631, 598227, 940071, 1794681, 2193499, 2820213, 6580497, 19741491]

約数ペア:

[(1, 19741491), (3, 6580497), (7, 2820213), (9, 2193499), (11, 1794681), (21, 940071), (33, 598227), (61, 323631), (63, 313357), (77, 256383), (99, 199409), (183, 107877), (231, 85461), (427, 46233), (467, 42273), (549, 35959), (671, 29421), (693, 28487), (1281, 15411), (1401, 14091), (2013, 9807), (3269, 6039), (3843, 5137), (4203, 4697)]