19927944

素因数分解:

$2^3\times 3^7\times {\mathrm{17}}^1\times {\mathrm{67}}^1$

素因数の和:111

約数の個数: 128

約数和(自身を含む): 60220800

約数和(自身を除く): 40292856

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 17, 18, 24, 27, 34, 36, 51, 54, 67, 68, 72, 81, 102, 108, 134, 136, 153, 162, 201, 204, 216, 243, 268, 306, 324, 402, 408, 459, 486, 536, 603, 612, 648, 729, 804, 918, 972, 1139, 1206, 1224, 1377, 1458, 1608, 1809, 1836, 1944, 2187, 2278, 2412, 2754, 2916, 3417, 3618, 3672, 4131, 4374, 4556, 4824, 5427, 5508, 5832, 6834, 7236, 8262, 8748, 9112, 10251, 10854, 11016, 12393, 13668, 14472, 16281, 16524, 17496, 20502, 21708, 24786, 27336, 30753, 32562, 33048, 37179, 41004, 43416, 48843, 49572, 61506, 65124, 74358, 82008, 92259, 97686, 99144, 123012, 130248, 146529, 148716, 184518, 195372, 246024, 276777, 293058, 297432, 369036, 390744, 553554, 586116, 738072, 830331, 1107108, 1172232, 1660662, 2214216, 2490993, 3321324, 4981986, 6642648, 9963972, 19927944]

約数ペア:

[(1, 19927944), (2, 9963972), (3, 6642648), (4, 4981986), (6, 3321324), (8, 2490993), (9, 2214216), (12, 1660662), (17, 1172232), (18, 1107108), (24, 830331), (27, 738072), (34, 586116), (36, 553554), (51, 390744), (54, 369036), (67, 297432), (68, 293058), (72, 276777), (81, 246024), (102, 195372), (108, 184518), (134, 148716), (136, 146529), (153, 130248), (162, 123012), (201, 99144), (204, 97686), (216, 92259), (243, 82008), (268, 74358), (306, 65124), (324, 61506), (402, 49572), (408, 48843), (459, 43416), (486, 41004), (536, 37179), (603, 33048), (612, 32562), (648, 30753), (729, 27336), (804, 24786), (918, 21708), (972, 20502), (1139, 17496), (1206, 16524), (1224, 16281), (1377, 14472), (1458, 13668), (1608, 12393), (1809, 11016), (1836, 10854), (1944, 10251), (2187, 9112), (2278, 8748), (2412, 8262), (2754, 7236), (2916, 6834), (3417, 5832), (3618, 5508), (3672, 5427), (4131, 4824), (4374, 4556)]