21862440

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{653}}^1$

素因数の和:704

約数の個数: 128

約数和(自身を含む): 75340800

約数和(自身を除く): 53478360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 31, 36, 40, 45, 54, 60, 62, 72, 90, 93, 108, 120, 124, 135, 155, 180, 186, 216, 248, 270, 279, 310, 360, 372, 465, 540, 558, 620, 653, 744, 837, 930, 1080, 1116, 1240, 1306, 1395, 1674, 1860, 1959, 2232, 2612, 2790, 3265, 3348, 3720, 3918, 4185, 5224, 5580, 5877, 6530, 6696, 7836, 8370, 9795, 11160, 11754, 13060, 15672, 16740, 17631, 19590, 20243, 23508, 26120, 29385, 33480, 35262, 39180, 40486, 47016, 58770, 60729, 70524, 78360, 80972, 88155, 101215, 117540, 121458, 141048, 161944, 176310, 182187, 202430, 235080, 242916, 303645, 352620, 364374, 404860, 485832, 546561, 607290, 705240, 728748, 809720, 910935, 1093122, 1214580, 1457496, 1821870, 2186244, 2429160, 2732805, 3643740, 4372488, 5465610, 7287480, 10931220, 21862440]

約数ペア:

[(1, 21862440), (2, 10931220), (3, 7287480), (4, 5465610), (5, 4372488), (6, 3643740), (8, 2732805), (9, 2429160), (10, 2186244), (12, 1821870), (15, 1457496), (18, 1214580), (20, 1093122), (24, 910935), (27, 809720), (30, 728748), (31, 705240), (36, 607290), (40, 546561), (45, 485832), (54, 404860), (60, 364374), (62, 352620), (72, 303645), (90, 242916), (93, 235080), (108, 202430), (120, 182187), (124, 176310), (135, 161944), (155, 141048), (180, 121458), (186, 117540), (216, 101215), (248, 88155), (270, 80972), (279, 78360), (310, 70524), (360, 60729), (372, 58770), (465, 47016), (540, 40486), (558, 39180), (620, 35262), (653, 33480), (744, 29385), (837, 26120), (930, 23508), (1080, 20243), (1116, 19590), (1240, 17631), (1306, 16740), (1395, 15672), (1674, 13060), (1860, 11754), (1959, 11160), (2232, 9795), (2612, 8370), (2790, 7836), (3265, 6696), (3348, 6530), (3720, 5877), (3918, 5580), (4185, 5224)]