19765044

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{269}}^1$

素因数の和:449

約数の個数: 72

約数和(自身を含む): 54348840

約数和(自身を除く): 34583796

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 157, 234, 269, 314, 468, 471, 538, 628, 807, 942, 1076, 1413, 1614, 1884, 2041, 2421, 2826, 3228, 3497, 4082, 4842, 5652, 6123, 6994, 8164, 9684, 10491, 12246, 13988, 18369, 20982, 24492, 31473, 36738, 41964, 42233, 62946, 73476, 84466, 125892, 126699, 168932, 253398, 380097, 506796, 549029, 760194, 1098058, 1520388, 1647087, 2196116, 3294174, 4941261, 6588348, 9882522, 19765044]

約数ペア:

[(1, 19765044), (2, 9882522), (3, 6588348), (4, 4941261), (6, 3294174), (9, 2196116), (12, 1647087), (13, 1520388), (18, 1098058), (26, 760194), (36, 549029), (39, 506796), (52, 380097), (78, 253398), (117, 168932), (156, 126699), (157, 125892), (234, 84466), (269, 73476), (314, 62946), (468, 42233), (471, 41964), (538, 36738), (628, 31473), (807, 24492), (942, 20982), (1076, 18369), (1413, 13988), (1614, 12246), (1884, 10491), (2041, 9684), (2421, 8164), (2826, 6994), (3228, 6123), (3497, 5652), (4082, 4842)]