19419228

素因数分解:

$2^2\times 3^2\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{239}}^1$

素因数の和:347

約数の個数: 72

約数和(自身を含む): 51455040

約数和(自身を除く): 32035812

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 37, 61, 74, 111, 122, 148, 183, 222, 239, 244, 333, 366, 444, 478, 549, 666, 717, 732, 956, 1098, 1332, 1434, 2151, 2196, 2257, 2868, 4302, 4514, 6771, 8604, 8843, 9028, 13542, 14579, 17686, 20313, 26529, 27084, 29158, 35372, 40626, 43737, 53058, 58316, 79587, 81252, 87474, 106116, 131211, 159174, 174948, 262422, 318348, 524844, 539423, 1078846, 1618269, 2157692, 3236538, 4854807, 6473076, 9709614, 19419228]

約数ペア:

[(1, 19419228), (2, 9709614), (3, 6473076), (4, 4854807), (6, 3236538), (9, 2157692), (12, 1618269), (18, 1078846), (36, 539423), (37, 524844), (61, 318348), (74, 262422), (111, 174948), (122, 159174), (148, 131211), (183, 106116), (222, 87474), (239, 81252), (244, 79587), (333, 58316), (366, 53058), (444, 43737), (478, 40626), (549, 35372), (666, 29158), (717, 27084), (732, 26529), (956, 20313), (1098, 17686), (1332, 14579), (1434, 13542), (2151, 9028), (2196, 8843), (2257, 8604), (2868, 6771), (4302, 4514)]