21068964

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^2$

素因数の和:111

約数の個数: 144

約数和(自身を含む): 66729600

約数和(自身を除く): 45660636

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 29, 31, 36, 42, 54, 58, 62, 63, 84, 87, 93, 108, 116, 124, 126, 174, 186, 189, 203, 217, 252, 261, 279, 348, 372, 378, 406, 434, 522, 558, 609, 651, 756, 783, 812, 837, 868, 899, 961, 1044, 1116, 1218, 1302, 1566, 1674, 1798, 1827, 1922, 1953, 2436, 2604, 2697, 2883, 3132, 3348, 3596, 3654, 3844, 3906, 5394, 5481, 5766, 5859, 6293, 6727, 7308, 7812, 8091, 8649, 10788, 10962, 11532, 11718, 12586, 13454, 16182, 17298, 18879, 20181, 21924, 23436, 24273, 25172, 25947, 26908, 27869, 32364, 34596, 37758, 40362, 48546, 51894, 55738, 56637, 60543, 75516, 80724, 83607, 97092, 103788, 111476, 113274, 121086, 167214, 169911, 181629, 195083, 226548, 242172, 250821, 334428, 339822, 363258, 390166, 501642, 585249, 679644, 726516, 752463, 780332, 1003284, 1170498, 1504926, 1755747, 2340996, 3009852, 3511494, 5267241, 7022988, 10534482, 21068964]

約数ペア:

[(1, 21068964), (2, 10534482), (3, 7022988), (4, 5267241), (6, 3511494), (7, 3009852), (9, 2340996), (12, 1755747), (14, 1504926), (18, 1170498), (21, 1003284), (27, 780332), (28, 752463), (29, 726516), (31, 679644), (36, 585249), (42, 501642), (54, 390166), (58, 363258), (62, 339822), (63, 334428), (84, 250821), (87, 242172), (93, 226548), (108, 195083), (116, 181629), (124, 169911), (126, 167214), (174, 121086), (186, 113274), (189, 111476), (203, 103788), (217, 97092), (252, 83607), (261, 80724), (279, 75516), (348, 60543), (372, 56637), (378, 55738), (406, 51894), (434, 48546), (522, 40362), (558, 37758), (609, 34596), (651, 32364), (756, 27869), (783, 26908), (812, 25947), (837, 25172), (868, 24273), (899, 23436), (961, 21924), (1044, 20181), (1116, 18879), (1218, 17298), (1302, 16182), (1566, 13454), (1674, 12586), (1798, 11718), (1827, 11532), (1922, 10962), (1953, 10788), (2436, 8649), (2604, 8091), (2697, 7812), (2883, 7308), (3132, 6727), (3348, 6293), (3596, 5859), (3654, 5766), (3844, 5481), (3906, 5394)]