20889816

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{751}}^1$

素因数の和:840

約数の個数: 64

約数和(自身を含む): 55948800

約数和(自身を除く): 35058984

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 61, 76, 114, 122, 152, 183, 228, 244, 366, 456, 488, 732, 751, 1159, 1464, 1502, 2253, 2318, 3004, 3477, 4506, 4636, 6008, 6954, 9012, 9272, 13908, 14269, 18024, 27816, 28538, 42807, 45811, 57076, 85614, 91622, 114152, 137433, 171228, 183244, 274866, 342456, 366488, 549732, 870409, 1099464, 1740818, 2611227, 3481636, 5222454, 6963272, 10444908, 20889816]

約数ペア:

[(1, 20889816), (2, 10444908), (3, 6963272), (4, 5222454), (6, 3481636), (8, 2611227), (12, 1740818), (19, 1099464), (24, 870409), (38, 549732), (57, 366488), (61, 342456), (76, 274866), (114, 183244), (122, 171228), (152, 137433), (183, 114152), (228, 91622), (244, 85614), (366, 57076), (456, 45811), (488, 42807), (732, 28538), (751, 27816), (1159, 18024), (1464, 14269), (1502, 13908), (2253, 9272), (2318, 9012), (3004, 6954), (3477, 6008), (4506, 4636)]