19889388

素因数分解:

$2^2\times 3^4\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1$

素因数の和:213

約数の個数: 120

約数和(自身を含む): 57812832

約数和(自身を除く): 37923444

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 23, 27, 34, 36, 46, 51, 54, 68, 69, 81, 92, 102, 108, 138, 153, 157, 162, 204, 207, 276, 306, 314, 324, 391, 414, 459, 471, 612, 621, 628, 782, 828, 918, 942, 1173, 1242, 1377, 1413, 1564, 1836, 1863, 1884, 2346, 2484, 2669, 2754, 2826, 3519, 3611, 3726, 4239, 4692, 5338, 5508, 5652, 7038, 7222, 7452, 8007, 8478, 10557, 10676, 10833, 12717, 14076, 14444, 16014, 16956, 21114, 21666, 24021, 25434, 31671, 32028, 32499, 42228, 43332, 48042, 50868, 61387, 63342, 64998, 72063, 96084, 97497, 122774, 126684, 129996, 144126, 184161, 194994, 216189, 245548, 288252, 292491, 368322, 389988, 432378, 552483, 584982, 736644, 864756, 1104966, 1169964, 1657449, 2209932, 3314898, 4972347, 6629796, 9944694, 19889388]

約数ペア:

[(1, 19889388), (2, 9944694), (3, 6629796), (4, 4972347), (6, 3314898), (9, 2209932), (12, 1657449), (17, 1169964), (18, 1104966), (23, 864756), (27, 736644), (34, 584982), (36, 552483), (46, 432378), (51, 389988), (54, 368322), (68, 292491), (69, 288252), (81, 245548), (92, 216189), (102, 194994), (108, 184161), (138, 144126), (153, 129996), (157, 126684), (162, 122774), (204, 97497), (207, 96084), (276, 72063), (306, 64998), (314, 63342), (324, 61387), (391, 50868), (414, 48042), (459, 43332), (471, 42228), (612, 32499), (621, 32028), (628, 31671), (782, 25434), (828, 24021), (918, 21666), (942, 21114), (1173, 16956), (1242, 16014), (1377, 14444), (1413, 14076), (1564, 12717), (1836, 10833), (1863, 10676), (1884, 10557), (2346, 8478), (2484, 8007), (2669, 7452), (2754, 7222), (2826, 7038), (3519, 5652), (3611, 5508), (3726, 5338), (4239, 4692)]