19886748

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{1091}}^1$

素因数の和:1143

約数の個数: 72

約数和(自身を含む): 55770624

約数和(自身を除く): 35883876

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 31, 42, 49, 62, 84, 93, 98, 124, 147, 186, 196, 217, 294, 372, 434, 588, 651, 868, 1091, 1302, 1519, 2182, 2604, 3038, 3273, 4364, 4557, 6076, 6546, 7637, 9114, 13092, 15274, 18228, 22911, 30548, 33821, 45822, 53459, 67642, 91644, 101463, 106918, 135284, 160377, 202926, 213836, 236747, 320754, 405852, 473494, 641508, 710241, 946988, 1420482, 1657229, 2840964, 3314458, 4971687, 6628916, 9943374, 19886748]

約数ペア:

[(1, 19886748), (2, 9943374), (3, 6628916), (4, 4971687), (6, 3314458), (7, 2840964), (12, 1657229), (14, 1420482), (21, 946988), (28, 710241), (31, 641508), (42, 473494), (49, 405852), (62, 320754), (84, 236747), (93, 213836), (98, 202926), (124, 160377), (147, 135284), (186, 106918), (196, 101463), (217, 91644), (294, 67642), (372, 53459), (434, 45822), (588, 33821), (651, 30548), (868, 22911), (1091, 18228), (1302, 15274), (1519, 13092), (2182, 9114), (2604, 7637), (3038, 6546), (3273, 6076), (4364, 4557)]