21016450

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:212

約数の個数: 96

約数和(自身を含む): 49996800

約数和(自身を除く): 28980350

約数列:

[1, 2, 5, 7, 10, 13, 14, 25, 26, 31, 35, 50, 62, 65, 70, 91, 130, 149, 155, 175, 182, 217, 298, 310, 325, 350, 403, 434, 455, 650, 745, 775, 806, 910, 1043, 1085, 1490, 1550, 1937, 2015, 2086, 2170, 2275, 2821, 3725, 3874, 4030, 4550, 4619, 5215, 5425, 5642, 7450, 9238, 9685, 10075, 10430, 10850, 13559, 14105, 19370, 20150, 23095, 26075, 27118, 28210, 32333, 46190, 48425, 52150, 60047, 64666, 67795, 70525, 96850, 115475, 120094, 135590, 141050, 161665, 230950, 300235, 323330, 338975, 420329, 600470, 677950, 808325, 840658, 1501175, 1616650, 2101645, 3002350, 4203290, 10508225, 21016450]

約数ペア:

[(1, 21016450), (2, 10508225), (5, 4203290), (7, 3002350), (10, 2101645), (13, 1616650), (14, 1501175), (25, 840658), (26, 808325), (31, 677950), (35, 600470), (50, 420329), (62, 338975), (65, 323330), (70, 300235), (91, 230950), (130, 161665), (149, 141050), (155, 135590), (175, 120094), (182, 115475), (217, 96850), (298, 70525), (310, 67795), (325, 64666), (350, 60047), (403, 52150), (434, 48425), (455, 46190), (650, 32333), (745, 28210), (775, 27118), (806, 26075), (910, 23095), (1043, 20150), (1085, 19370), (1490, 14105), (1550, 13559), (1937, 10850), (2015, 10430), (2086, 10075), (2170, 9685), (2275, 9238), (2821, 7450), (3725, 5642), (3874, 5425), (4030, 5215), (4550, 4619)]